LOVE HYGIENE V1.4-20240315 Air Polishing and Cleaning and Ultrasonic Scaler User Manual

LOVE HYGIENE V1.4-20240315 Air Polishing and Cleaning and Ultrasonic

Scaler

Product Information

Specifications

• Model: Love Hygiene Air
• Indications: Air Polishing, Cleaning, and Ultrasonic Scaler for dental treatment
• Main Components: Main unit, ultrasonic handpiece, air polishing and cleaning handpiece, tips, nozzle, foot switch, powder tank, water bottle, power cable, prophylaxis powder
• Water Inlet Pressure: 1bar~5bar (0.1MPa~0.5MPa)
• Software Version: V1
• Environment Temperature: +10°C to +40°C
• Relative Humidity: 5% to 80%
• Atmospheric Pressure: 70kPa to 106kPa
• Cooling Water Temperature: +5°C to +25°C

Product Usage Instructions

• Refer to the packing list for device configurations and assemble the components including the main unit, handpieces, tips, nozzle, foot switch, and power cable.
• Use the digital displays to adjust water flow and power settings as needed for the procedure.
• The device automatically switches to the appropriate user mode based on the handpiece selected for ease of operation.
• Follow standard dental polishing and cleaning procedures using the ultrasonic scaler and air polishing handpieces to remove calculus, plaque, and stains from teeth and implants.
• Regularly check and replace worn or damaged tips to maintain optimal performance. Do not bend or grind the tips as it may affect treatment effectiveness.

FAQ

• Q: Who can use the Love Hygiene Air device?
• A: This device is designed for use by dental hygienists, dentists, or trained professionals in dental offices or clinics.
• Q: What are the contraindications for using this device?
• A: Contraindications include hemophilia patients, individuals with heart pacemakers, respiratory diseases such as asthma and chronic bronchitis, individuals with heart disease, pregnant women, and children.

Introduction

Love Hygiene Air is an advanced Air Polishing, Cleaning, and Ultrasonic Scaler for periodontal treatment. It removes subgingival and supragingival calculus and plaque, helping to therapeutically consolidate periodontal tissue. This device is designed for use by dental hygienists, dentists, or trained professionals in dental offices or clinics.

Device Features

1. Automatically switches to the appropriate user mode according to the handpiece selected.
2. LCD touch screen with clear and concise function selection and working status indicators.
3. Ultrasonic tips with rounded vibration trajectory for painless polishing and cleaning.
4. Titanium alloy ultrasonic tips that protect cementum and enamel.
5. Automatic frequency tracking to identify the best rate for optimal ultrasonic scaler performance.
6. Digital displays for water and power adjustments.
7. Compatibility with irrigation products, including hydrogen peroxide, sodium hypochlorite, and chlorohexidine.
8. Ultrasonic handpiece with LED lights for better visual and clinical operation.
9. Three-piece air polishing and cleaning handpiece to allow convenient disassembly for cleaning and maintenance.
10. Sterilizable handpieces at 132° C and 0.22MPa pressure.
11. Wireless multifunction foot switch.

Product Model

• Love Hygiene Air

Product Configuration

• Please refer to the packing list for device configurations.

Structure and Components

• The device includes the main unit, ultrasonic handpiece, air polishing and cleaning handpiece, tips, nozzle, foot switch, foot switch adapter (optional), powder tank, water bottle, power cable, and prophylaxis powder.

Indications for Use

• The Love Hygiene Air: Air Polishing, Cleaning, and Ultrasonic Scaler is intended for use in dental polishing, cleaning, and periodontal therapy.
• It removes calculus deposits, stains, and plaque from teeth and implants, reaching everywhere, including the surface, pits, and grooves, as well as interproximal spaces.

By attaching different scaling tips to the ultrasonic handpiece, the device can be used in many facets, including the following functions:

• Removal of supragingival and subgingival calculus
• Cleaning of dental plaque, including before other dental procedures such as fluoride treatments or whitening procedures
• Reducing stains for shade determination
• Breakdown of harmful dental biofilm
• Cleaning of implant fixtures
• Scaling and root planning
• Periodontal treatments
• Cleaning before placement of orthodontic brackets

Contraindications for Use

1. Hemophilia patients
2. Patients or users with heart pacemakers
3. Previous diagnosis with respiratory diseases such as asthma and chronic bronchitis
4. Individuals with heart disease, as well as pregnant women and children, should use this device with caution

Equipment Security Classification

1. Classification by Operation Mode: Continuous Operating Device

2. Type of Protection Against Electric Shock: Class Ⅰ

3. Degree of Protection Against Electric Shock: Type B Applied Part

4. Contract Duration:
   Tips: Less than 30 minutes
   Nozzle: Less than 10 minutes

5. Temperature Rating: tips may reach 51°C if the device is used at maximum power.

6. Ingress Protection Rating:
   Device: Ordinary Equipment (IPX0)
   Foot Switch: Anti-Drip (IPX1)

7. Gas Exposure Limits: Equipment cannot be used in the presence of a flammable anesthetic mixture with air, oxygen, or nitrous oxide.

Main Technical Specification
Note: If other adapters are used, IEC 60601-1 approved adapters should be selected.

1. Main Unit –
   • Input: ~100-240V, 50-60Hz, 1.5-3A
   • Insurance: T3.15AH 250V
   • Weight: 2.8kg
   • Size (LxWxH): 350mm x 265mm x 120mm
2. Foot Switch Adapter:
   • Input: ~100-240V, 50-60Hx, 0.2A
   • Output: ~5V, 1A
3. Main Vibration Offset of Output Tip (maximum): 90μm, deviation: ± 50%
4. Tip Vibration Frequency Output: 3±5kHz
5. Output Half Offset Force (maximum): 5N deviation: ± 5%
6. Output Power of Tip: 3W ~ 20W
7. Air Inlet Pressure: 5.5bar ~ 7.5bar (0.55MPa ~ 0.75MPa)
8. Rechargeable Lithium Battery of Foot Switch:
   • Model: 14500
   • Nominal Voltage: 3.6V
   • Capacity: 750mAh
9. Water Inlet Pressure: 1bar~5bar (0.1MPa~0.5MPa)
10. Software Version: V1

Operation Environment

1. Environment Temperature: +10℃ ~ + 40℃
2. Relative Humidity: 5% ~ 80%
3. Atmospheric Pressure: 70kPa ~ 106kPa
4. Cooling Water Temperature: +5℃ ~ +25℃

Intended Place of Use

• Only for use in professional dental and healthcare facilities by trained providers.

Precautions

1. Keep the device clean before and after operation.
2. Run the unit with water for 10 seconds before each clinical operation to remove any remnants of fluids in the tubing.
3. Operators should wear adequate protection (e.g. goggles, masks) to prevent cross-contamination and ensure personal safety.
4. Use the product in compliance with relevant operation specifications and regulations of the dental and healthcare facility. Operation is limited to dental hygienists, dentists, and trained dental professionals.
5. Disinfect accessories before each operation, including the ultrasonic handpiece, tip, torque wrench, air polishing and cleaning handpiece, and nozzle.
6. Do not assemble or disassemble any tips while stepping on the foot pedal, or if the handpiece is vibrating.
7. Do not step on the foot pedal button while the tail cord of the air polishing and cleaning handpiece is removed from the main unit.
8. Before using the ultrasonic handpiece, ensure the tail cord of the air polishing and cleaning handpiece is correctly placed on the handpiece bracket. Similarly, ensure the ultrasonic handpiece tail plug is correctly placed on the ultrasonic handpiece bracket before using the air polishing and cleaning handpiece.
9. Ensure the tip is tightened before use.
10. Replace the tip if it is worn or damaged, as this will decrease the vibration intensity and alter the effectiveness of treatment.
11. Do not bend or grind the tip.
12. If the equipment is used in the anhydrous (no water) mode for more than 2 seconds, the tip temperature may exceed 51°C. It is recommended to let the tip work for 2 seconds and pause for at least 15 seconds in the anhydrous mode.
13. Except for intended use, never aim the polishing and cleaning handpiece nozzle at people.
14. Contact between powder spray and a person’s eyes may cause irritation or damage to the eyes. All personnel (hygienists, dentists, users, and patients) must wear goggles during air polishing and cleaning treatments.
15. If you need to add powder to the tank during the air polishing and cleaning process, click the “Cleaning” key on the screen, wait for the internal pressure to release, then remove the powder tank from the machine and add the appropriate amount of powder.
16. Before placing the air polishing and cleaning handpiece on the nozzle, use a syringe to blow moisture from the joints at both ends (especially the air interface) to prevent moisture from entering the air path and avoid potentially clogging of the powder in the tubing and pipelines.
17. Only use water that is under state and federal regulations for dental procedures.
18. If using a pressureless water source, the water surface should be more than one meter above the patient’s head.
19. Do not pull the tail cord with excess force during use.
20. Do not hit or scratch the handpiece.
21. After operation, turn off the power supply and unplug the power plug.
22. We are only responsible for the safety of the device when maintenance, repair, and modifications are carried out using genuine Love Hygiene parts and accessories and the operation is under the instruction manual.
23. The inner threads of tips from certain manufacturers may be rough or incompatible with our system, potentially damaging the patient’s teeth. Please only use genuine Love Hygiene branded tips.
24. If the sealing ring is damaged when using Love Hygiene Air, refer to the Sealing Ring Specifications in the manual and replace it with a suitable sealing ring. Various seals are included in the supplied accessories. If you have any questions, please contact Love Hygiene.

Installation and Operation

Main Unit and Main Accessories Display

• Front View of Main Unit

• Back View of Main Unit

• Wireless Foot Switch

Screen

• [Warning 1] Incorrect replacement of lithium batteries will result in a hazardous risk.
• [Warning 2] Replacement of lithium batteries by inadequately trained personnel may result in a hazardous risk. If there is any problem with the battery, please contact Love Hygiene for replacement.

Schematic Diagram of Handpiece

Installation Diagram of Tip

Main Unit Installation

1. Unpack the Equipment: Open the package and check that all accessories are included, according to the packing list. Place the main unit on a stable desktop before use.
2. Connect the External Air and Water Tubing: Take out the external air tubing and attach the air tubing connector to the air supply interface on the back of the main unit. If using external water, attach the water tubing connector to the water source interface on the back of the main unit.
3. Connect the Power Supply: Turn off the power switch and connect the power cord.

[Warning 1] To avoid the risk of electric shock, this equipment must only be connected to power supply mains that are grounded.
[Warning 2] The device should be plugged into a power supply that is easily accessible for safe and convenient plugging and unplugging.
[Warning 3] Unauthorized modification of this equipment is not allowed.
[Warning 4] This equipment cannot be used in areas where liquids may accumulate on the floor.
[Warning 5] This device can only be used by licensed dental professionals.
[Warning 6] The machine is expected to be connected to an independent power supply. The power supply shall be specified as part of the device, or the combination of device and power supply.
[Warning 7] Use of this equipment adjacent to or stacked with other equipment should be avoided. Doing so may result in improper operation. If such use is necessary, this equipment should be observed to verify that it is operating normally.
[Warning 8] Use of accessories, transducers, and cables other than those specified or provided by the manufacturer of this equipment may result in increased electromagnetic emissions or decreased electromagnetic immunity of this device, thus resulting in improper operation.
[Warning 9] Remove the battery of the wireless foot switch if the equipment will not be used for extended periods, such as for 4 weeks.

Pair the Foot Switch

1. Enter the Settings Interface: Click the “Settings” button on the screen.
2. Activate the Matching Buttons: Press and hold the matching buttons on the underside of the footswitch.
3. Start the Pairing Process: Click the “Matching Foot Switch” button on the screen. The main unit will start to automatically match the foot switch. Now release the matching button on the foot switch.
4. Confirmation of Successful Matching: When the main unit and the wireless foot switch are successfully matched, the screen will automatically return to the operation interface. The screen will display the wireless foot switch power icon, and the blue indicator light on the wireless foot switch will turn on.
5. Retry if Matching Fails: If matching between the main unit and the wireless foot switch is unsuccessful, press and hold the matching button on the foot switch again and click “Continue” to retry the matching process.
6. Automatic Shutdown and Manual Control: The wireless foot pedal will automatically shut down after 10 minutes of inactivity, and the power icon on the screen will disappear. To manually turn off the wireless foot pedal, press the waterless mode and cleaning mode buttons simultaneously for 3 seconds. To start the pedal and automatically connect it to the main unit, press the standard mode button for 3 seconds.

[Tip 1] The device has been pre-matched between the host and the foot switch before leaving the factory and can be used directly after turning on the device. If the matching fails or the foot switch is replaced, follow the above steps to perform the matching.
[Tip 2] The wireless pedal has two indicator lights: the power indicator and the connection indicator.

Power Indicator

• Green Light – Power is sufficient.
• Yellow Light – Power is insufficient, and needs charging.
• Flashing Light – Pedal is pressed down

Connection Indicator

• Blue Light – Connected to the main unit.
• Flashing – Not connected to the main unit.

[Tip 3] After the wireless pedal is connected to the main unit, the power level of the pedal will be displayed on the main unit. If the wireless pedal is not connected, then there will be no power display on the main unit.
[Tip 4] To charge the device, unplug the silicone plug on the back of the foot pedal and connect the charging cable. The flashing yellow light indicates the unit is charging, and the steady green light indicates full charge.

Handpiece Connection and Disassembly
To assemble the ultrasonic handpiece, take out the appropriate handpiece from the box. Install the tip on the handpiece by twisting it on with the wrench. Now connect the ultrasonic handpiece to the ultrasonic line. Place the handpiece on the bracket on the left side of the main unit for storage.
To assemble the air polishing and cleaning handpiece, take out the appropriate handpiece from the box. Connect this with the air polishing and cleaning line and place the handpiece on the bracket on the right side of the main unit for storage.

Filling With Prophylaxis Powder
Remove the powder tank and use the three-way syringe to blow away any residual powder. Take out the prophylaxis powder bottle and shake it 10 times before pouring the powder into the tank.
When the powder in the tank is used up, click the “Auto Purging” button twice to remove the compressed air in the powder tank. Now add powder. Be sure not to add powder while the device is in use.

[Tip 1] Do not exceed the maximum “MAX” mark when filling the powder tank.
[Tip 2] Use only the supragingival powder in the supragingival powder tank. Similarly, the subgingival or all-in-one powder can only be used in the subgingival powder tank.

Filling With Water
Take out the water bottle, add purified or distilled water to it, and then plug the water bottle into the main unit. To make it easier to insert the water bottle, apply a small amount of petroleum jelly to the seal ring at the bottom of the water bottle to lubricate it.

Operation Guide

Mode Selection
The device has two modes: air polishing and cleaning mode, and an ultrasonic scaler mode. When the air polishing and cleaning handpiece is picked up, the main unit automatically switches to the appropriate mode, locking the ultrasonic mode so it can’t be used. Conversely, when the ultrasonic handpiece is picked up, the main unit switches to ultrasonic mode, locking the air polishing and cleaning mode so it can’t be used.
If both handpieces are placed on their brackets simultaneously, the main unit locks, and the foot switch will not respond. Similarly, if both handpieces are picked up at the same time, the main unit will also lock, preventing any response from the foot switch.

Ultrasonic Scaling Mode

1. Preparation: Turn on the device and pick up the ultrasonic handpiece. The screen will automatically switch to ultrasonic mode. Now assess the patient’s oral condition and select “Supragingival” or “Subgingival” mode based on their needs. Additionally, set the power and water level in advance. It is recommended to start with power at Level 3 and volume at Level 5. Adjust these levels according to the patient’s sensitivity and oral condition during the scaling process.
2. Select and Install the Tip: Choose an appropriate tip as needed and tighten it on the handpiece using the wrench.
3. Activate the Handpiece: Press the foot pedal to activate the tip, the LED on the head of the handpiece, and the water ejection. The vibration and water will stop immediately upon releasing the foot switch, but the LED light will remain on for 10 seconds.
4. Scaling Technique: Under normal use, gently touch the tooth surface with only the side of the tip. Avoid using too much force or staying in one place for too long. Be sure to maintain angular contact between the side of the tip and the tooth surface. Also, allow the tip to freely vibrate without applying pressure.
5. Post-Scaling Cleaning: After scaling, let the device run with water for 30 seconds to clean the handpiece and tip.

Supragingival and Subgingival (0-4mm) Air Polishing and Cleaning

1. Preparation: Assess the patient’s oral condition and set the power and water levels in advance. It is recommended to start with power at Level 2 and water at Level 3. Adjust these levels according to the patient’s sensitivity and overall oral condition during the air polishing and cleaning process.
2. Initial Spray Test: Before beginning treatment, use the supragingival handpiece to spray into an external container for 1-3 seconds to ensure that the air and water spray is evenly mixed.
3. Protective Gear: Before air polishing and cleaning, put on safety equipment: goggles and a mask. Both users and assistants should wear goggles and protective masks, and patients should wear goggles.
4. Holding the Handpiece: Hold the handpiece like a pen for optimal control.
5. Positioning the Nozzle: Align the nozzle with the tooth surface. Maintain a distance of 3-5mm from the tooth surface. The nozzle should be at an angle of 30-60 degrees to the tooth surface, as shown in Figure 6. For subgingival cleaning (0-4mm), use subgingival or all-in-one powder. Do not use supragingival powder subgingivally. Aim the supragingival handpiece nozzle toward the sulcus and into the pocket.
6. Evacuation: Use a high-speed evacuation system to absorb the air/powder mixture reflected from the tooth surface during treatment.

Subgingival (4-9mm) Air Polishing and Cleaning

1. Preparation: For periodontal pockets less than 4mm, aim the supragingival handpiece nozzle, using subgingival or all-in-one powder, toward the sulcus and into the pocket as described in section
2. For pockets 4mm to 9m, use the subgingival handpiece with the AirPerio Tip. Never use the supragingival powder in the sulcus.
3. Assembly of the AirPerio Tip: Attach the AirPerio Tip to the end of the subgingival handpiece by rotating the Perio-Tip nut into the subgingival handpiece. Lock it with a wrench, as shown in Figure 7.
4. It is recommended to use the AirPerio Tip to remove plaque at depths of 4 – 9 mm in the periodontal pocket. Move the AirPerio Tip in a slow up-and-down motion.
5. Set Power and Water Levels: Assess the patient’s periodontal condition and set the power and water levels in advance. It is recommended to start with power at Level 1 and water at Level 3. Adjust these levels according to the patient’s periodontal sensitivity and overall oral condition during the air cleaning and polishing process.
6. Holding the Handpiece: Hold the handpiece like a pen for precise control.
7. Plaque Removal Technique: Use the AirPerio Tip to remove plaque at depths of 4 – 9mm in the periodontal pocket. Move the AirPerio Tip in a slow up-and-down motion. Do not keep the AirPerio Tip stationary while inside the pocket.

[Tip] Do not disassemble any part of the handpiece while it is actively being used.

Only use subgingival or all-in-one powder when air polishing and cleaning in the subgingival area

Wireless Multi-Function Foot Switch
The wireless multi-function foot switch, as shown in the figure, has buttons that control different modes and functions:

Three Levels

| Air Pressure Increases by Three

Levels

D| Cleaning| Water| Air + water

[Note] In the Enhance mode, the power or air pressure is increased by three levels based on the original level, with a maximum of Level 12. When pedal button C is released, the power level automatically returns to the previously set level.

Settings Interface

1. Access Settings: Click the “Setting” button on the screen and enter the settings interface.
2. Change Language: Select the “Language Switch” button to select a new language.
3. Adjust Water Temperature: Click the “Water Temperature” button to change the water temperature. There are 5 temperature settings on this device.
   0| 1| 2| 3| 4
   ---|---|---|---|---
   No Heating| 25℃| 30℃| 35℃| 40℃

[Tip] Because the water will transfer part of the heat when it flows in the tubing and pipeline, the actual output water temperature may be slightly lower than the set temperature.

4. Select Water Supply Mode: Choose the “Water Supply Mode” setting button to pick between “Bottle” mode or “External Water” mode.
   Bottle Mode: Install the water bottle and adjust the water volume by clicking the plus or minus
   buttons on the screen.
   External Water Mode: Connect the external water supply and adjust the water volume using
   the water volume adjustment knob on the back of the main unit.

5. Restore Default Settings: Click the “Reset” button to restore the settings to their
   default values.

Maintenance
Air Polishing and Cleaning Handpiece:

1. Remove the Handpiece: For the subgingival handpiece, loosen the handpiece head first, then pull it out. But be sure to remove the nozzle in advance, as shown in Figure 8.
2. Clean the Handpiece: Align the handpiece head with a three-way syringe and blow away any residual powder inside the handpiece. Be sure to blow the front and rear ends of the handpiece to reach all angles.
3. Unblock the Handpiece: If the handpiece is blocked, use a needle to clear the blockage.
4. Maintenance Restrictions: You should not attempt to maintain or clean the handpieces, water bottles, and powder tanks while the device is in use.

Powder Tank

• Prophylaxis Powder Handling: Estimate the amount of prophylaxis powder needed before use. Leaving extra powder in the tank for an extended period can cause blockages due to clumping in a humid environment. Pour out any remaining powder after use.

• Daily Powder Removal: Before turning off the device each day, use an air syringe to blow off any remaining powder in the powder tank. Also, be sure to blow off the powder on the threads of the powder tank, as well as its cover.

• Purging Mode: Twice daily, before and after using the air polishing and cleaning system, click the “Purging Mode” button on the main unit. The device will enter purging mode for 20 seconds and then stop automatically.
  [Tip] If you need to add powder during use, select the purging mode to release the high-pressure air in the powder tank. This prevents powder from spraying from the bottom of the powder tank when unplugged.

• Flushing After Using Solutions: If a solution is used during treatment, fill the water bottle with pure or distilled water afterward. Pick up the handpiece and press the foot switch to let water flow through the handpiece, flushing the tubing and pipelines for at least 1 minute. This prevents chemical liquids from corroding the metal parts, including the joints and solenoid valves.

Troubleshooting

Description of Wearing Parts

• The O-rings at the Joint of the Handpiece: The connection position of the handpiece may be damaged due to frequent unplugging. The O-rings need to be replaced if worn or damaged or at least every 3 months.
• Sand Pipe Tubing at the Bottom of the Main Unit: There is an on/off valve to control the powder at the bottom of the main unit. The sand pipe tubing at this valve may become damaged, requiring replacement.

Expected Life of Sand Pipe

• Sandblasting Tail Line of the Main Engine: There is a sand hose in the tail line of the sandblasting handpiece. Over time, wearing of this hose may lead to air and sand leakage. This damage requires replacement.

Expected Life of Sandblasting Tail Line

• Main Frame O-rings: The O-rings in the rest of the main frame may also be damaged due to wear and tear. They need to be replaced if damaged or every 3 months.

Troubleshooting

There is a pop-up prompt “Heating malfunction. Please turn off the heating system.”| The heating system is functioning abnormally and cannot heat appropriately.| Enter the air polishing interface. Set the temperature to Level 0. If all other functions perform normally, please contact Love Hygiene to replace the heater.
---|---|---
There is a pop-up prompt “Grounding fault, please turn off the heating system and check the circuit grounding condition of your clinic.”| The unit’s power supply is not grounded.| If other functions perform normally, it’s recommended to retry the operation using a grounded power supply.
There is a pop-up prompt “Insufficient Air Pressure.”| The air source is not connected.| Check the air source connection and ensure that the pressure

rating meets the requirements of

machine operation.

Press the foot switch, but the tip does not vibrate, and no water sprays.| Poor contact of the power plug.| Plug in the power plug well.
Poor contact of a foot switch.| Plug in the foot switch plug well.
The bracket switch does not pop

up.

| Toggle the bracket switch to make it

pop up smoothly.

Press the foot switch and the water sprays, but the tip does not vibrate.| The tip is not adequately tightened.| Tighten the appropriate tip to prevent leakage.
The connection plug

between the tail line and the circuit board is loose.

| – Contact Love Hygiene.
Handpiece failure.| Contact Love Hygiene.
Press the foot switch and the tip vibrates, but there is no water spray.| Impurities in solenoid valve.| Contact Love Hygiene.
Waterway blockage.| Use a three-way syringe to clean the waterway flow (3.7.2).
There is still water spray after the unit is turned off.| Impurity in the solenoid

valve.

| Contact Love Hygiene.
There is airflow, but there is no water spray.| Unconnected air source or low air pressure (≤ 3 bar).| Check the air connection and ensure that the pressure meets the requirements of the device (5bar-

7bar).

The tail line is blocked.| Use the nozzle to clean the handpiece.
The internal pipeline of the main unit is blocked.| Contact Love Hygiene.
Solenoid valve failure.| Contact Love Hygiene.
There is air and water spray,| The powder adheres to the inner wall of the powder tank after being damp, which affects the normal

flow of the powder.

| Disassemble the powder tank and reinstall it after cleaning and drying.
but no powder.|

Incorrect match between powder tank and prophylaxis powder.

| The supragingival powder tank should be matched with supragingival powder.
---|---|---
There is air spray but no water.| Solenoid valve failure.| Contact Love Hygiene.
The solenoid valve is blocked due to impurities.| Open the main unit dredge sole-

noid valve or contact local distributors or manufacturers.

There is no air or water spray.| Abnormal foot switch connection.| Reconnect the foot switch.
Footswitch failure.| Repair or replace the foot switch.
Powder tank leakage| The seal ring is damaged.| Replace the seal ring.
The upper cover of the pow-

The der tank is not screwed in place.

|

Re-screw the upper cover.

Air cleaning and polishing

handpiece leakage.

| The tail line seal ring is damaged,

deformed or missing.

| Replace the seal ring.
The handpiece is difficult to plug- in.| Handpiece snap ring deformation| Replace the snap ring.

Note: If the fault cannot be removed, please contact Love Hygiene.

Cleaning, Disinfection, and Sterilization

Drain the Water Tubing—Dry Mode
After each use, the water in the water tubing should be drained to prevent the retention of residual water and the growth of bacteria. The method of draining the water in the tubing is as follows:

In Ultrasonic Mode

• If a water bottle is used for water supply:
  After treatment, remove the ultrasonic headpiece and water bottle. Pour out any remaining liquid in the water bottle. Now, select the “Auto Purging” button on the screen and step on the D button on the foot pedal to begin draining. To stop draining, release the pedal and the process will stop automatically after 30 seconds. Click the “Auto Purging” button again and repeat the above steps three times to drain the water in the tubing.

• If an external water supply is used:
  Note: We highly recommend not to use an external water supply, please use the water bottle.
  After treatment, turn off the external water switch and remove the ultrasonic handpiece. Select the “Auto Purging” button on the screen and step on the D button on the pedal to begin. To stop draining, release the pedal and it will stop automatically after 30 seconds. Click the “Auto Purging” button again and repeat the above steps three times to drain the water in the tubing.

In Air Cleaning and Polishing Mode
Remove the handpiece and water bottle. Then pour out the remaining water in the water bottle, or turn off the external water switch. Adjust all power levels to the maximum level and press the pedal continuously for one minute. Release the pedal to drain the water in the tubing.
The cleaning, disinfection, and sterilization of the ultrasonic handpiece, scaling tip, air polishing, and cleaning handpiece, nozzle, and wrench are as follows. Note that unless otherwise stated, they will be hereinafter referred to as “products.”

Warnings

1. The use of strong detergents and disinfectants (alkaline pH>9 or acid pH<5) will reduce the lifespan of the products. The manufacturer takes no responsibility for such damage if improper cleaning has shortened product’s lifespan.
2. Do not clean the ultrasonic handpiece with the ultrasound cleaning machine.
3. Products must not be exposed to temperatures above 138°C.
4. Disinfection is not a substitute for cleaning or sterilization. Both cleaning and sterilization must be performed after each use.

Sterilization Cycles
The products have been designed to withstand a large number of sterilization cycles. The materials used in manufacturing were selected accordingly. However, with every sterilization, thermal and chemical stresses will result in the aging of the products. The maximum number of sterilizations for the ultrasonic handpiece is 600 times. For the air polishing and cleaning handpiece, as well as the wrench, the maximum number of sterilizations is 1000 times. For tips, the maximum number of sterilization cycles is 300 times.

Initial Processing
Processing Principles

• Effective sterilization can only be achieved after thorough cleaning and disinfection. As part of your responsibility for maintaining the sterility of products during use, ensure that only validated equipment and product-specific procedures are used for cleaning, disinfection, and sterilization. Adhere to the validated parameters during every cycle.
• Additionally, observe the applicable legal requirements in your state or country, as well as the hygiene regulations of the dental office or clinic, particularly regarding the additional requirement for the inactivation of prions.

Post-Operative Treatment
Post-operative treatment must be carried out immediately, no later than 30 minutes after the completion of the operation. Follow these steps:

1. Flush the Handpieces: Run the Love Hygiene Air Polishing, Cleaning, and Ultrasonic Scaler in irrigation mode for 30 seconds to flush the ultrasonic handpiece, tip, air polishing, and cleaning handpiece, and nozzle.
2. Rinse the Handpieces: Remove the ultrasonic handpiece and air polishing and cleaning handpiece from the unit. Rinse away the dirt on the surface of the product with pure distilled or deionized water.
3. Dry the Products: Dry the unit products with a clean, soft cloth. Place it in a clean tray to finish air drying.

Transportation

• Safely transport the device to the cleaning, disinfecting, and sterilization area to avoid any damage and contamination to the environment.

Preparation Before Cleaning
The devices must be cleaned, disinfected, and sterilized in their disassembled state. Follow these steps using the required tools: torque wrench, tray, soft brush, and a clean dry soft cloth.

1. Remove the Tip: Use the torque wrench provided by Love Hygiene to remove the tip from the ultrasonic handpiece. Then, place the tip and wrench into a clean tray.
2. Disassemble the Handpiece: Unscrew the nipple of the handpiece counterclockwise. Remove the sealing O-ring, light pipe, and LED lamp, and place them in the tray.
3. Remove the Nozzle: Remove the nozzle from air polishing and cleaning the handpiece, and then place it into the tray with the other products.
4. Clean the Parts: Use a clean, soft brush to carefully brush the joints between the handpiece and the connector of the cable, front thread, horn, cone head, seal ring, light pipe, LED lamp, and nozzle until there is no visible debris on the surface. The cleaning agent can be pure water, distilled water, or deionized water. Then, use a soft cloth to dry the handpiece and accessories. Place the cleaned and dried parts into a clean tray.

For disassembling steps see Figure 9 below for details.

Cleaning
The cleaning should be performed no later than 1 hour after patient use. For automated cleaning, follow these guidelines:

• Certification: Ensure the cleaner is validated by CE or FDA certification by ISO 15883.
• Flushing Connector: Connect a flushing connector to the inner cavity of the product.
• Appropriate Procedure: The cleaning procedure should be suitable for the product, and the irrigating period must be sufficient.
• Ultrasonic Handpiece: Do not clean the ultrasonic handpiece with the ultrasound cleaning machine.

1. Place the Product in the Washer-Disinfector: Carefully place the product into the washer-disinfector. Fixation of the product is needed only when the product is in the device. Ensure the products do not contact each other in the washer-disinfector.
2. Connect the Nozzle Interface: Connect the interface of the nozzle to the appropriate flushing connector of the automatic washer-disinfector.
3. Start the Program: Start the program of the washer-disinfector. The process for the automated washing is as follows.
   • 3 min pre-cleaning with cold, purified water
   • Emptying
   • 5 min washing with Metrex Empower in deionized water (<45°C)
   • Cleaning Agent: Metrex EmPower Concentration: 1:128~1:512
   • Temperature: 20°C~40°C

Emptying

• 1 min intermediate rinsing with cold, deionized water
• Emptying
• 1 min intermediate rinsing with cold, deionized water
• Emptying

Notes

• The cleaning agent does not have to be pure water. It can be distilled water, deionized water, or multi-enzyme. Ensure that the selected cleaning agent is compatible with the product before attempted use.
• During the washing stage, the water temperature should not exceed 45 °C. Otherwise, the protein will solidify and be difficult to remove

Disinfection
Notes

1. According to lS0 17664, manual disinfecting is not advised. If manual disinfection must be used, ensure it is a validated process before use.
2. Ensure the washer-disinfector is validated CE or FDA certification by ISO 15883.
3. Disinfection must be performed no later than 2 hours after the cleaning phase. Automated disinfection is preferred if conditions permit.

Drying
Automated Drying: Drying of the outside of the products should be done by the drying cycle of the washer/disinfector. If needed, additional manual drying can be performed using a lint-free towel. If sterile, compressed air is used for drying the cavities of instruments; the air must be filtered by HEP.

Manual Drying
If your cleaning and disinfection process does not have an automatic drying function, follow these steps to dry the product after cleaning and disinfection:

1. Spread a clean, white paper or cloth on a flat table.
2. Point the product against the white paper or cloth.
3. Dry the product with filtered, dry compressed air (maximum pressure of 3 bar) until no liquid is sprayed onto the white paper or cloth.
4. Once no liquid is sprayed, the product drying is complete.
5. Drying may also be done directly in a medical drying cabinet or oven. The recommended drying temperature is 80°C~120°C for 15-40 minutes.

Notes

• The process of drying the products must be performed in a clean location.
• The equipment used should be inspected and maintained regularly to ensure compliance.

Inspection and Maintenance
After inspection, if there are no problems, the ultrasonic handpiece should be immediately reassembled. This involves installing the sealing ring, LED, light guide, and cone head in sequence with the ultrasonic handpiece. Then, tighten the cone head clockwise. Insert the nozzle into the air polishing and cleaning handpiece immediately.

1. Inspection Procedures: If there is still a visible stain on the product after cleaning and disinfection, the entire cleaning and disinfection process must be repeated.
2. Check for Damage: If the product is damaged, smashed, detached, corroded, or bent, it must be discarded and no longer used. Continued use is a violation of safety precautions.
3. Check the Products: If the accessories are found to be damaged, please replace them before use. All new accessories for replacement must be cleaned, disinfected, and dried.
4. Service Life: If the service time (number of uses) of the product reaches the specified service life, replace the product.

Packaging
Place the cleaned and dried product and quickly package it in an FDA-approved wrap, pouch, or other method to maintain sterility during the sterilization process.
Notes

• The packaging environment and related tools must be cleaned regularly to ensure cleanliness and prevent the introduction of contaminants to your surroundings.
• Avoid physical contact with parts of different metals when packaging.

Sterilization
Use the following steam sterilization procedures (fractional pre-vacuum procedure*) for sterilization:

1. Steam Sterilizer Compliance: Ensure the steam sterilizer complies with EN13060 or is certified according to EN 285 to comply with ISO 17665.
2. Sterilization Parameters: Sterilize the product for 4 minutes at a temperature of 132 °C and a pressure of 2.0~2.3 bars. Allow a drying time of 20 minutes.

Notes

• Only products that have been effectively cleaned and disinfected are allowed to be sterilized.
• Before using the sterilizer for sterilization, read the Instruction Manual provided by the equipment manufacturer and follow the instructions.
• Do not use hot air sterilization or radiation sterilization, as this may result in damage to the product.
• Use the recommended steam sterilization procedures. It is not recommended to use other sterilization methods, such as ethylene oxide, formaldehyde, or low-temperature plasma sterilization. The manufacturer assumes no responsibility for the procedures that have not been recommended. If you use sterilization procedures that have not been recommended, adhere to related effective standards and verify the method’s suitability and effectiveness.
• Fractional pre-vacuum procedure = steam sterilization involving repeated pre-vacuum cycles. This method performs steam sterilization through pre-vacuum stages.

Storage

1. Storage Environment: Store the product in a clean, dry, ventilated, non-corrosive atmosphere. Maintain a relative humidity of 10% to 70% where the products are stored, and ensure an atmospheric pressure of 70KPa to 106Kpa. The temperature should stay between 10 °C and 30 °C.
2. Post-Sterilization Storage: After sterilization, package the product in a medical sterilization bag or a clean, sealed container. Store the packaged product in a special storage cabinet. The storage time should not exceed 7 days. If exceeded, the product should be re-sterilized before use.

Notes

• The storage environment should be clean and disinfected regularly.
• Product storage must be organized, clearly marked, and recorded.

Transportation

1. Prevent excessive shock and vibration during transportation. Please handle the device with care.
2. Do not transport the device with dangerous goods that could cause damage to the products.
3. Avoid exposure to weather elements including sun, rain, or snow during transportation.

The cleaning and disinfection of the main unit are as follows

• Before each use, wipe the surface of the machine and the tail cord of the handpiece with
  a soft cloth or paper towel soaked in 75% medical alcohol. Repeat this process at least 3 times. Run each handpiece hose (without the handpieces attached) for the Love Hygiene Air: Air Polishing, Cleaning, and Ultrasonic Scaler under irrigation mode for 30 seconds, before installing the handpiece.

• After each use, let each handpiece hose (with each handpiece connected to the hose) run under irrigation mode for 30 seconds, then remove the handpiece.

• Wipe the surface of the device and the tail cord of the handpiece with a soft cloth soaked in clean, distilled, or deionized water, or a clean disposable wipe. Repeat this wiping process at least 3 times.

Maintenance, Storage, and Transportation

Maintenance

1. Air Drying Equipment: It is recommended to install air drying equipment, such as a freezing dryer, in advance before using the air polishing and cleaning device. Check the drying equipment every day to ensure it is working normally. Otherwise, the prophylaxis powder may accumulate and block the tubing in the device or handpiece.
2. Sealing Ring Inspection: Check the sealing O-ring on the handpiece, tail line, powder tank, and water bottle regularly. If defects are found, please refer to the instruction manual and replace them as detailed.
3. Air Inlet Interface Filter: Check the air inlet interface filter once a month to confirm whether there are impurities in the filter. If there are impurities, replace the filter and check the cleanliness of the air compressor and the environment where it is located. Even if there are no impurities identified, it is recommended to replace the filter every 3 months. Spare filters are included in the provided accessories. The filter replacement process is shown in Figure 10.
4. Foot Pedal Issues: If the foot pedal battery will not charge, or if the foot pedal does not work, please contact Love Hygiene.

Storage

1. This device should be installed or stored in a cool, dry, and ventilated place.
2. Do not mix with toxic, corrosive, flammable, or explosive articles during storage.
3. The product should be stored in an environment where the relative humidity is 10% ~ 70%, the atmospheric pressure is 70kPa ~ 106kPa, and the temperature is 10℃ to 30℃.
4. When this equipment is not in use for an extended time, it should be powered on and ventilated once a month for at least 5 minutes each time.

Transportation

1. Excessive impact and shaking should be prevented during transport. Be gentle and handle with care.
2. Do not pack with dangerous goods during transport.
3. Avoid exposure to environmental conditions including sun, rain, and snow during transport.

Environmental Protection

Mechanical Elements, Including Bolts, Nuts,

Washers, etc.

| ****

○

| ****

○

| ****

○

| ****

○

| ****

○

| ****

○

○: Indicates that the content of the toxic substance in all homogeneous materials of the part is below the limit requirement stipulated in SJ/T-11363-2006 Limit Requirements for Toxic and Hazardous Substances in Electronic Information Products.

×: indicates that the content of the toxic substance in at least one of the homogeneous materials of the part exceeds the limit requirement specified in SJ/T-11363-2006.

Please dispose according to the local laws or consult with the dealer from whom you purchased it about waste disposal.

Symbol Instruction

• The sale of this device and products is restricted to dental professionals. See state and federal laws for restrictions.

EMC-Declaration of Conformity

• A list of all cables is replaceable by the RESPONSIBLE ORGANIZATION:

PILING PORT

| 1.7m
Guidance and Manufacturer’s Declaration – Electromagnetic Emissions

The model Love Hygiene Air is intended for use in the electromagnetic environment specified below. The customer or the user of the model Love Hygiene Air should ensure that it is used in such an environment.
Emissions test| Compliance| Electromagnetic environment – guidance

RF emissions CISPR 11

|

Group 1

| The model Love Hygiene Air RF energy is only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference

in nearby electronic equipment.

RF emissions CISPR11| Class B|

The model Love Hygiene Air RF energy is only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment.

Harmonic emissions lEC 61000-3-2| Class A
Voltage fluctuations/flicker emissions lEC 61000-3-3|

Complies

Guidance & Declaration — Electromagnetic Immunity

The model Love Hygiene Air is intended for use in the electromagnetic environment specified below. The customer or the user of the model Love Hygiene Air should ensure that it is used in such an environment.
Immunity Test| IEC 60601

Test Level

| Compliance Level| Electromagnetic Environment

– Guidance

Electrostatic discharge (ESD) lEC 61000-4-2

|

± 8 kV contact

± 15 kV air

|

± 8 kV contact

± 15 kV air

| Floors should be wood, concrete, or ceramic tile. If floors are covered with synthetic material, the relative humidity should be at least 30 %.
Electrical fast transient/burst IEC 61000-4-4| ±2kV for power supply lines

±1kV for Input/ output lines

| ± 2kV for power supply lines

± 1kV for interconnecting cable

| Mains power quality should be that of a typical commercial or hospital environment.

Surge

lEC 61000-4-5

|

± 1 kV line to lie

± 2 kV line o earth

| Line-to-line—

± 0,5 kV, ± 1 kV

Line-to-ground—

± 0,5 kV, ± 1 kV, ±

2 kV

|

Mains power quality should be that of a typical commercial or hospital environment.

---|---|---|---

Voltage dips, short interruptions, and voltage variations on power supply input lines IEC 61000–11

| 0 % UT; 0,5 cycle

At 0°, 45°, 90°,

135°, 180°, 225°,

270° and 315°

0 % UT; 1 cycle and

70 % UT; 25/30

cycles

Single phase: at 0° 0 % UT; 250/300

cycle

| 0 % UT; 0,5 cycle

At 0°, 45°, 90°,

135°, 180°, 225°,

270° and 315°

0 % UT; 1 cycle and 70 % UT; 25/30

cycles

Single phase: at 0° 0 % UT; 250/300

cycle

|

Mains power quality should be that of a typical commercial or hospital environment. If the user of the model requires continued operation during power mains interruptions, it is recommend- ed that the model be powered from an uninterruptible power adapter or a battery.

Power frequency (50/60 H)

magnetic field IEC 61000-4-8

|

30 A/m, 50 Hz and

60 Hz

|

30 A/m, 50 Hz and

60 Hz

| Power frequency magnetic fields should be at levels characteristic of a typical location in a typical commercial or hospital environment.
NOTE UT is the AC mains voltage before application of the test level.
Guidance & Declaration – Electromagnetic Immunity

The model Love Hygiene Air is intended for use in the electromagnetic environment specified below. The customer or the user of the model Love Hygiene Air should ensure that it is used in such an environment.
Immunity Test| IEC 60601 Test

Level

| Compliance Level| Electromagnetic Environment – Guidance
| 3 V, 0.15 MHz – 80| |

Portable and mobile RF communications equipment should be used no closer to any part of the model Love Hygiene Air, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter. Recommended separation distance

d=1.2×P1/2 d=2×P1/2

d=1.2×P1/2 80 MHz to 800 MHz

d=2.3×P1/2 800 MHz to 2.7 GHz

where P is the maximum output power rating of the transmitter In watts (W) according to the transmitter manufacturer and is the recommended separation distance in meters (m).

Conducted RF lEC 61000-4-6

Conducted RF lEC 61000-4-6

| MHz, 6 V in ISM

bands between 0.15

MHz – 80 MHz, 80

% AM at 1 kHz

3 V/m and 10 V/m,

| 3 V, 0.15 MHz – 80 MHz, 6 V in ISM

bands between 0.15

MHz – 80 MHz, 80 %

AM at 1 kHz

Radiated RF lEC 61000-4-3| 80 MHz – 2,7 GHz,

80 % AM at 1 kHz

385 MHz, pulse

| 3 V/m and 10 V/m, 80

MHz – 2,7 GHz, 80 %

AM at 1 kHz

| modulation 18 Hz,| 385 MHz, pulse modu-
| 27 V/m;| lation 18 Hz, 27 V/m;
| 450 MHz, FM +/- 5| 450 MHz, FM +/- 5
| kHz deviation 1 kHz| kHz deviation 1 kHz
| sine, 28 V/m;| sine, 28 V/m;
| 710 MHz, 745 MHz,| 710 MHz, 745 MHz,
| 780 MHz, pulse

modulation 217

Hz, 9 V/m;

| 780 MHz, pulse modu- lation 217 Hz, 9 V/m;

810 MHz, 870 MHz,

| 810 MHz, 870 MHz,| 930 MHz, pulse
| 930 MHz, pulse| modulation 18 Hz, 28
| modulation 18 Hz,| V/m;
| 28 V/m;| 1,720 MHz, 1,845
| 1,720 MHz, 1,845| MHz, 1,970 MHz,
| MHz, 1,970 MHz,| pulse
| pulse

modulation 217 Hz,

28 V/m;

2,450 MHz, pulse

modulation 217 Hz,

28 V/m;

5,240 MHz, 5,500

MHz, 5,785 MHz,

pulse modulation

217 Hz, 9

V/m

| modulation 217 Hz, 28 V/m;

2,450 MHz, pulse modulation 217 Hz, 28 V/ m;

5,240 MHz, 5,500

MHz, 5,785 MHz,

pulse modulation 217

Hz, 9 V/m

| Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey, should be less than the compliance level in each frequency range.

Interference may occur in the vicinity of equipment marked with the following symbol:

---|---|---|---
NOTE 1 At 80 MHz – 800 MHz, the higher frequency range applies.

NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects, and people.

a.        Field strength from fixed transmitters, such as base stations for radio (cellular/ cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcasts, and TV broadcasts, cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the model is used exceeds the applicable RF compliance level above, the model should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the model.

b.        Over the frequency range of 150 kHz to 80 MHz, field strengths should be less than

3V/m.

Recommended Separation Distances Between

Portable and Mobile RF Communications Equipment and the Model

The model is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the model can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the model is recommended below, according to the maximum output power of the communications equipment.
Rated Maximum Output Power

of Transmitter W

| Separation Distance According to Frequency of Transmitter m
150kHz to 80MHz d=1.2×P1/2| 80MHz to 800MHz d=1.2×P1/2| 800MHz to 2,7GHz d=2.3×P1/2
0,01| 0.12| 0.12| 0.23
0,1| 0.38| 0.38| 0.73
1| 1.2| 1.2| 2.3
10| 3.8| 3.8| 7.3
100| 12| 12| 23

For transmitters rated at a maximum output power not listed above, the recommended separation distance (d) in meters (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) accordable to the transmitter manufacture.
NOTE I At 80 MHz – 800 MHz, the separation distance for the higher frequency range applies.
NOTE II These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects, and people.

The device has been tested and homologated under EN 60601-1-2 for EMC. This does not guarantee that this device will not be affected by electromagnetic interference. Avoid using the device in a high electromagnetic environment.

Statement

Love Hygiene reserves the right to change the design of the equipment, the technique, fittings, the instruction manual, and the content of the original packing list at any time without further notice. The pictures are only for reference. The final interpretation rights belong to Love Hygiene. Unauthorized use of this product’s appearance or images, including counterfeiting, is strictly prohibited.
(Please refer to the packaging label for the date of manufacture.)

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