Let's get your machine working
Dyson Purifier Hot+Cool™ HP7A Autoreact (White/Nickel)
Let's get your machine working
Dyson Purifier Hot+Cool™ HP7A Autoreact (White/Nickel)
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Cleaning the machine
To always get the best performance from your Dyson purifying fan, it’s important to regularly clean it and check for blockages.
If your machine is dusty, wipe with a damp lint-free cloth.

Look for blockages in the air inlet holes on the filter and the small aperture inside the loop amplifier.

Use a soft brush to remove dust and debris.

Don’t use detergents or polishes to clean your machine.

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Quick start guide
Please follow the steps in the video.
Find the text version of the step-by-step guide instead, under "Is there anything else we can help with?"
Is there anything else we can help with?
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Quick start guide
Please follow the steps in the video.
Use both hands to lift your machine out of the box, by its base.
Do not lift out by the loop amplifier.
Your machine comes with a HEPA+Carbon filter.

Push your HEPA+Carbon filter into the outer cover and position onto the base. Push firmly until both outer covers click securely into place.

The remote control can be magnetically attached to the top of the loop.

Place the remote control on top of the machine with the buttons facing down.

Plug in and switch on.

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Use both hands to lift your machine out of the box, by its base.
Do not lift out by the loop amplifier.
Your machine comes with a HEPA+Carbon filter.

Push your HEPA+Carbon filter into the outer cover and position onto the base. Push firmly until both outer covers click securely into place.

The remote control can be magnetically attached to the top of the loop.

Place the remote control on top of the machine with the buttons facing down.

Plug in and switch on.

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Information menu
Press this button to scroll through the information being monitored by your Dyson purifying fan.
Information about air quality, temperature, humidity and filter levels is shown on the LCD screen.
When a particular type of pollutant causes air quality to decrease, a symbol for the pollutant will show on the LCD screen.

Indoor air quality - 12 seconds
Monitor the current air quality with a graph showing the last 12 seconds of data.

Indoor air quality - 24 hours
Monitor the air quality with a graph showing the last 24 hours of data.

Particulate matter (PM2.5)
Microscopic particles up to 2.5 microns in size, suspended in the air we breathe. These include smoke, bacteria and allergens.

Particulate matter (PM10)
Larger microscopic particles up to 10 microns in size, suspended in the air we breathe. These include dust, mould and pollen.

Volatile organic compounds
VOCs are typically odours that may be potentially harmful. These can be found in cleaning products, paints and furnishings.

Nitrogen dioxide and other oxidising gases
These potentially harmful gases are released into the air by combustion, for example, the burning gas when cooking and in vehicle exhaust emissions.

Indoor temperature
Monitor the ambient temperature to help maintain a comfortable environment.

Indoor humidity
The amount of water vapour in the air, shown as a percentage.

Filters
The remaining filter life is shown on the LCD screen and will indicate when your filters need replacing.

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Using the remote control
To operate, point the remote control toward the front of the base.

Standby On/Off
Press the Standby on/off button on your Dyson purifying fan or remote control to stop your machine. It will continue to monitor the air quality.

Airflow speed
Press the Airflow speed button to increase and decrease the airflow speed.

Oscillation On/Off
Press the Oscillation button to circulate the air around the room and scroll through the oscillation settings from 0° to 350°.

Information menu
Press this button to scroll through the information being monitored by your Dyson purifying fan.
Information about air quality, temperature, humidity and filter levels is shown on the LCD screen.
When a particular type of pollutant causes air quality to decrease, a symbol for the pollutant will show on the LCD screen.

Auto mode
Set your Dyson purifying fan to Auto mode and the onboard sensors will intelligently adjust the settings of the machine according to the air quality.
Air quality: your machine will pause when the target air quality has been reached, switching on again when the air quality levels drop.
Airflow speed: the airflow speed will increase until the target air quality and temperature have been reached.

Airflow direction
Press the Airflow direction button to change the direction of airflow from front to back.
Change the airflow direction for your personal comfort.
Select the Airflow direction to Fan mode for airflow from the front for purifying and cooling.
Air will be purified continuously, whether the air is set to flow from the front or the back.

Night mode
In Night mode, your Dyson purifying fan will continue to monitor and respond to changes in air quality, but only using its quietest settings – and with its LCD screen dimmed.

Sleep timer
Your Dyson purifying fan heater will turn off automatically after the selected amount of time.
To set the time: press the button to scroll through the time options. Once activated, press the Sleep timer button once to see the time selected.
To cancel the Sleep timer: press the Sleep timer button twice.

Heating and Cooling modes
Press the button to set the required room temperature.
Your machine will pause when the temperature set has been reached.
Press the Cooling mode button to switch your machine from heating mode to cooling mode.

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Finding the machine serial number
The serial number can be found in the following locations:
On the front of the user guide.
On a removable sticker on the front of the purifier.
On your purifier, located underneath the filter.
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Manual mode
Airflow can be set manually by the airflow buttons on the remote. You can choose a setting from 1 (low flow of air) through to 10 (high flow of air), and the machine home screen will show the fan speed when in manual mode.

Auto mode
Set your Dyson purifying fan to Auto mode and the onboard sensors will intelligently adjust the settings of the machine according to the air quality.
Air quality: your machine will pause when the target air quality has been reached, switching on again when the air quality levels drop.
Airflow speed: the airflow speed will increase until the target air quality and temperature have been reached.

If the air quality target is met, the air quality graph will show green. The air quality will continue to be monitored, with the fan running on a low speed in the background.
If the air quality worsens, the air quality graph will show red and the purifier will automatically restart cleaning the room.
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Auto mode
Set your Dyson purifying fan to Auto mode and the onboard sensors will intelligently adjust the settings of the machine according to the air quality.
Air quality: your machine will pause when the target air quality has been reached, switching on again when the air quality levels drop.
Airflow speed: the airflow speed will increase until the target air quality and temperature have been reached.

If the air quality target is met, the air quality graph will show green. The air quality will continue to be monitored, with the fan running on a low speed in the background.
If the air quality worsens, the air quality graph will show red and the purifier will automatically restart cleaning the room.
Using the remote control for Auto mode
Press the 'Auto' button on the top right corner of the remote control.

To turn Auto mode off, press the same button.
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Night mode
In Night mode, your Dyson purifying fan will continue to monitor and respond to changes in air quality, but only using its quietest settings – and with its LCD screen dimmed.
Press the Night mode and Sleep timer button to scroll through the timer options.
Customise your Night mode settings in the Dyson Link app.

If in manual mode, the power will reduce to level 4. When Night mode is activated, if it is already below level 4, it will remain the same. This can be manually changed if desired. The display will illuminate briefly, then fade as before. If in Auto mode the power will be reduced automatically.
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Replacing the battery
Please follow the steps in the video.
Is there anything else we can help with?
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Removing the battery
Unscrew the remote control's battery compartment.
Loosen the base and pull it away from the remote. Replace the battery with type CR 2032.
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Please follow the steps in the video.
Find the text version of the step-by-step guide instead, under "Is there anything else we can help with?"
Is there anything else we can help with?
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Changing your HEPA+Carbon filters
Before changing your filter, switch off and unplug your Dyson purifying fan heater.
The remaining filter life is displayed on the screen and will indicate when your non-washable filters need replacing. Press the Information button on your remote or check on the Dyson Link app.
You'll need to reset the filter life on your machine.

Your machine comes with a HEPA+Carbon filter.

To change your HEPA+Carbon filter, push down on the buttons either side of your machine to release the outer cover. Push down on the tabs to remove the filter.

Push the replacement filter into the outer cover and make sure the tabs click into place.

Put the outer covers into position on your machine and push firmly until they both click securely into position.

Plug in and switch your machine, and reset your filter life.

Resetting your HEPA+Carbon filter life
It's important to reset your filter life after you have replaced your filter.

Press and hold the Night mode button on your remote control.
The display on your machine will countdown from five, the filter life will be reset and your machine is ready to use.

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Dyson Purifier Hot+Cool™ HP7A Autoreact (White/Nickel)