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Support for your Dyson Pure Cool™ desk purifier fan

Dyson Pure Cool™ HEPA Air Purifier and Fan DP04 (White/Silver)

Activate your warranty

You can get support that's tailored to you, owner exclusives and more when you register your straightener.

Getting started

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Works with smart voice control

Control your Dyson purifier or purifier humidifier – with your voice.²

Amazon Alexa

Ask Alexa to enable the Dyson skill, to control your Dyson purifier. And set a routine that automates how your machine works with other devices in your home.

Google Assistant

Control all of your connected purifiers with Google or set a routine to automate how your machine works with other devices in your home. Just say “Hey Google” to get started.

Siri Shortcuts

Connect your Dyson machines to Siri Shortcuts and you’ll be able to control them with your voice, on your Apple device.

Voice control icon

Some things you can say:

When you've connected your Dyson purifier to your voice assistant, you could try saying:

"Alexa, turn on my purifier"
"Hey Google, turn up the temperature"
"Hey Siri, enable Auto mode"

² Requires a compatible voice service. Voice control excludes lighting. Siri shortcuts not compatible with Dyson robot vacuums.

Google is a trademark of Google LLC.

Using your machine

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Play the video. How to use auto mode.
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  • Setting the oscillation angle

    Set the oscillation angle of your purifying fan, from 45° to 350°.

  • Setting airflow speed

    Choose from 10 different fan speed settings, as well as switching between front projection and diffused modes.

  • Night-time mode

    Set Night-time mode for purified air on the quietest settings, with a dimmed screen.

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Cleaner indoor air, day after day

Cleaner indoor air, day after day

Over time, purifier filters can get clogged up with microscopic pollutants, and even let unpleasant odours back into the room. That’s why we recommend changing your filter when your machine alerts you – so it keeps on running effectively, for a cleaner environment.

Useful tips

  • Store the remote

    It attaches magnetically to the top of the machine, button-side down.

  • Control on the go

    Set up and connect to your purifying fan with the Dyson Link app for iOS and Android. Then control and monitor it from your smartphone. 

    The Dyson Link app requires Wi-Fi, and an app-enabled device with iOS 10 or Android 5.0 and above.

Frequently asked questions

Should I change the fan settings in different seasons?

Increasing airflow will create a cooling effect using purified air, so you may find it beneficial to change your purifier fan's speed settings as the temperature changes. For personal cooling in summer, use settings 4-10. In colder periods, enable diffused mode. It projects air through the back of the machine, to avoid unwanted cooling.

Does the LCD display stay on throughout the night?

If you're concerned by the brightness of your purifier fan's LCD display, consider enabling Night-time mode using your remote control or the Dyson Link app. During operation, a small moon icon indicates that your purifier fan is on, but the main display turns off after 10 seconds to help avoid sleep disturbance.

How do I know when my purifier fan is in auto mode?

If auto mode is enabled, AUTO will be illuminated on your purifier fan's LED display. When your machine is purifying the air, AUTO will be in white. When the air in the room is purified, it will turn green and your purifier fan will remain idle until pollutant levels rise.

How long should my purifier fan be turned on for?

Your purifier fan's auto mode is designed to manage the air quality in your home without you having to operate the machine – so it's only on when it needs to be. If you or someone in your home suffer from allergies or respiratory illnesses, we particularly recommend using your machine's auto mode.

Where should I place my purifier fan?

Your purifier fan is engineered to purify single rooms, so you should use it where you spend the majority of your time at home. When placing the machine, make sure there is at least a few feet of clearance on all sides so that the air can circulate effectively.

Should I keep my windows open or closed?

Your purifier fan works most efficiently in a sealed environment – opening the windows can allow more pollutants to enter the air in your home, which means your machine will take longer to work.

Accessories and replacement parts

The Dyson warranty

  • 'How to' videos

    To help you get the most from your machine. Quick and easy.

  • Helpful tips

    Tailored reminders that will keep your machine working at its best, for longer. 

  • Exclusive owner benefits

    Priority access to previews of new Dyson technology, events and offers. 

  • Expert advice. 6 days a week.

    Freephone and live chat. The right advice for your machine, from real Dyson people. 

  • Free Dyson parts

    Replacement parts if something goes wrong during your warranty period. 

  • Hassle-free replacement

    If we can’t repair your machine, we’ll replace it while it's under warranty.

We don’t stop caring about our machines once they’re yours. Activating your warranty allows us to give you a tailored, direct service for your machine. Even after your warranty has ended, we’ll still be on hand to help.