dyson HEPA Big+Quiet Formaldehyde Purifier User Guide

June 9, 2024
dyson

HEPA Big+Quiet Formaldehyde Purifier
Dyson HEPA Big+Quiet
Formaldehyde logo. 

User Guide

HEPA Big+Quiet Formaldehyde Purifier

The Dyson HEPA Big+Quiet Formaldehyde purifier. Power button on an LCD screen, mesh filter cover and CO2 sensor on the side.

Getting started

Assembling your machine

Use both hands to lift your machine out of the box, by its base.
Your machine comes with a HEPA filter, carbon filter and permanent catalytic filter. These are already installed in your machine.
Lift the conic amplifier out of the box and place it on the top of your machine.
Rotate the conic amplifier until it clicks securely into place.
Plug in and press the power button.

Positioning your machine

Your machine is fitted with wheels to make it easier to move.
Position your machine on a level floor.
For the most effective purification, position your machine on the edge of the room with the conic amplifier pointing to the furthest point, along the wall.
You can also position your machine facing diagonally across the room.

Using your machine

Power and Airflow speed
Press the Power button on the screen to switch on your machine.
Press the Power button again for Airflow speed 1.
Press the Power button a second time for Airflow speed 2.
Press and hold the Power button to switch off your machine.

CO2 monitoring

The LCD screen displays the power mode setting and the CO2 level in the room – reporting it in real time.

LCD screen display showing that CO2 is at a safe level. This is indicated by green-coloured numbers.| LCD screen display showing that
CO2 is building up. This is indicated
by yellow-coloured numbers.| LCD screen display showing that
CO2 is at a concerning level. This is
indicated by red-coloured numbers.
---|---|---
Low CO2
CO2 is at a safe level.| Medium CO2
CO2 has built up. It’s advisable to take action, like opening a door or window.| High CO2
CO2 has built up to a level of concern.
It’s advisable to take action, like opening
a door or window.

Changing your HEPA filter

Remove the conic amplifier
Slide the Release button on the back of the conic amplifier to unlock. Lift the conic amplifier off your machine.
Lift the outer cover off the base of your machine.

Sideways green arrow indicates Release switch to open the purifier, for access to change the HEPA filter. Upward green arrows indicate direction to lift outer covers off.
Remove the filter
The HEPA filter is located in the outer cover. Press the filter release buttons located on the inner rim and lift the outer cover off the filter. Dispose of the filter.

Zoomed in green indicators highlight the release buttons to remove outer cover off the filter. Green, upward arrow shows direction to lift the cover.
Install a new filter
Remove your replacement filter from any packaging.
Place the filter on the base of your machine.
Place the outer cover over the filter and press down until it clicks securely into position.
Place the conic amplifier on your machine and rotate until it clicks securely in position.
Plug in and press the power button.

The reassembly is demonstrated by first placing the filter on to the base, followed by the outer cover over the filter. Finally, referring to green arrow direction, position and  twist the conic amplifier.
A click indicates a secure lock.

Changing your carbon filter

Remove the conic amplifier
Slide the Release button on the back of the conic amplifier to unlock. Lift the conic amplifier off your machine.
Lift the outer cover off the base of your machine.

Remove the filter
The carbon filter is wrapped around the central body of your machine.
Pull each of the four clips towards you to release the filter.
Dispose of the filter.

Green arrows indicate that a user should pull each of the four clips towards them. This releases the filter from the body of the purifier.
Install a new filter
Remove your replacement filter from any packaging.
Place the filter on the base of your machine.
Wrap the filter around the central body of your machine, fit the clips into position and push each one to secure the filter.
Place the outer cover back in position on the base of your machine.
Place the conic amplifier on your machine and twist until it clicks securely in position.
Plug in and press the power button.

Looking after your machine

To always get the best performance from your Dyson air purifier, it’s important to regularly clean it and check for blockages.
Cleaning your machine
If your machine is dusty, wipe with a damp, lint-free cloth.

Check the sensor inlets on the left hand side of the conic amplifier for dust and debris.
Look for dust and debris in the outer cover and in the conic amplifier.
Use a soft brush to remove dust and debris.
Don’t use detergents or polishes to clean your machine.

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