Support for your Dyson Pure Hot+Cool Cryptomic air purifier and heater

Here you can find helpful tips, frequently asked questions, your user manual and more.

Dyson Pure Hot+Cool Cryptomic air purifier and heater

Activate your warranty

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

Getting started

Watch how to quickly get up and running with our step-by-step guide.

Connecting your machine

Follow these three simple steps to connect your machine to the Dyson Link app.

  • Mobile device

    Step 1

    Download the Dyson Link app, open it and select 'Add machine' from the menu. Then select your machine.

  • Mobile device being held close to the Dyson Pure Hot+Cool Cryptomic air purifier and heater

    Step 2

    Hold your mobile device next to your machine's display. This will allow your machine to detect your device.

  • Standby button being pressed on the Dyson Pure Hot+Cool Cryptomic air purifier and heater

    Step 3

    Press the Standby button on your machine to activate the pairing process. Then follow the on-screen instructions to complete connection set-up.

Download the Dyson Link app

User manual

Download your Dyson Pure Hot+Cool Cryptomic air purifier and heater user manual

Using your machine

Understanding your LCD screen's icons


The icons on the built-in LCD screen show you which pollutants are present, reporting them in real time. They also tell you about temperature, humidity and filter life.

  • Indoor Air Quality Index (AQI)

    Shows your air quality over the last 12 seconds, or over the last 24 hours.

  • Particulate matter PM2.5

    Shows microscopic particles smaller than 2.5 microns, including smoke, bacteria and allergens.

  • Particulate matter PM10

    Shows particles smaller than 10 microns, including pollen, dust and pet dander.

  • Volatile Organic Compounds (VOCs)

    Shows gases released from a wide range of sources, such as aerosol sprays and air fresheners. They include formaldehyde and benzene, household fumes and odours.

  • Nitrogen Dioxide (NO2)

    Shows oxidising gases such as NO2, released by combustion. Includes cigarette smoke, car emissions, candles and gas stoves.

  • Filter life

    Shows how much filter life remains on the combination filter. So you know when to replace it.

Understanding pollutant levels

When a pollutant causes the air quality to drop, the relevant icon will appear on the LCD screen. The coloured bar on the left of the screen will indicate how much of the pollutant is present, and will continually update as your machine purifies the air.

  • The LCD screen's icons showing different levels of pollutants

    Good

    When the green section of the coloured bar is highlighted, your machine is detecting a very low level of the type of pollutant.

  • The LCD screen's icons showing different levels of pollutants

    Fair

    When the yellow section of the coloured bar is highlighted, your machine is detecting a moderate level of the type of pollutant.

  • The LCD screen's icons showing different levels of pollutants

    Poor

    When the orange section of the coloured bar is highlighted, your machine is detecting a high level of the type of pollutant.

  • The LCD screen's icons showing different levels of pollutants

    Very poor

    When the red section of the coloured bar is highlighted, your machine is detecting a very high level of the type of pollutant.

  • Auto mode, heating and cooling

    In Auto mode, your machine will automatically react to air pollution and room temperature. Watch how.

  • Oscillation and airflow

    Watch our video guide on how to customise the angle, speed and direction of airflow.

  • Person scheduling their machine using the Dyson Link app

    7-day scheduling

    Set when you want your machine to be on and off, up to seven days in advance, with the Dyson Link app.

  • The Dyson Pure Hot+Cool Cryptomic air purifier and heater in Night mode

    Night mode

    For the quietest settings and a dimmed display, set your machine to Night mode using your remote control.

  • Person setting the Sleep timer using the remote control

    Sleep timer

    Using your remote control, choose when you'd like your machine to turn off. Select a time between 15 minutes and 9 hours.

Voice control. All you have to do is ask.

Ask about the current activity of your air purifier and heater, or ask it to begin a new task. Check the Dyson Link app for examples of voice commands.

Maintaining your machine

You can find out how to monitor and replace the combination filter in our video guide. Your Dyson Cryptomic™ filter is permanent, so you don’t need to change it.

Frequently asked questions

The combination filter needs to be changed after 12 months, based on 12 hours’ use a day. The Dyson Cryptomic™ filter is permanent, so you don’t need to change it.

If you're concerned by the brightness of your purifying fan heater'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 is on, but the main display turns off after 10 seconds to help avoid sleep disturbance.

If auto mode is enabled, AUTO will be illuminated on your purifying fan's LCD 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 air purifier and heater will remain idle until pollutant levels rise.

Your air purifier'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.

Your air purifier and heater 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.

Your air purifier and heater 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.

Increasing airflow will create a cooling effect using purified air, so you may find it beneficial to change your air purifier and heater'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.

The Dyson warranty

  • 'How to' Logo

    'How to' videos

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

  • Helpful tips Logo

    Helpful tips

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

  • Exclusive owners Logo

    Exclusive owner benefits

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

  • Advice Logo

    Expert advice. 7 days a week.

    Freephone and live chat. Open 8am - 8pm Monday to Friday, 8am - 6pm Saturday and Sunday.

  • Parts and labour Logo

    Free Dyson parts and labour

    Replacement parts or repairs if something goes wrong during your warranty period.

  • Hassle-free replacement Logo

    Hassle-free replacement

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

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

Talking to us is easy.

You can call us
1-800-258-6688
Email us
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