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All about your Dyson Purifier Hot+Cool HP2 De-NOx

Welcome to your dedicated Owner’s space. Here you'll find helpful set-up tips and maintenance advice, how-to videos, and your user manual.

Have you registered your machine?

Download the MyDyson™ app to register. Plus, fast access to tailored guides, 24/7 support, and monthly air quality reports.

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Alternatively, you can register online here.

Getting set up

A purifier heater with the filters and remote alongside.

Download user manual

Everything you need to know about your purifier heater.

Download user manual

Get the MyDyson™ app

Access all your machine’s features and expert guides. Plus get tailored support and personalised monthly air quality reports.

A mobile screen infront of a Dyson air purifier

Connecting your machine

Follow these three steps to connect your machine to the MyDyson™ app.1

  • Step 1

    Download the MyDyson™ app to your mobile device, open and select 'Add machine' from the menu. Then select your purifier.

  • Step 2

    Hold your device next to your purifier’s LCD screen. This will allow your machine to detect your mobile device.

  • Step 3

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

The MyDyson™ app unlocks your full machine experience

Adjust the settings and change modes remotely. Monitor real time air quality and receive monthly reports. If you haven't already, download the app now for all the features and latest updates.

  • Control your machine wherever you are

    Your primary controls are now instantly accessed on the home screen, including power, fan speed and oscillation.

  • Create a weekly schedule

    Set your purifier to operate as you get home from work, just at the weekends, or whenever fits your routine. With the MyDyson™ app you can set specific times that suit you.

  • Real-time air quality information

    See your indoor air quality as it changes, in real time. And get up-to-date outdoor air quality information for your chosen location.

  • Personalised air quality reports

    Get monthly insights into your indoor air quality. Find out which pollutants have most often been detected in your home and when.

Using your remote

For easy use, it’s curved and magnetised to store neatly on the machine.

A view from above of the remote sat on top of the purifier

  • Purification and temperature settings

    Select Auto mode and your on-board sensors will intelligently adjust settings according to your air quality. You can also manually select your desired temperature.

  • Setting the oscillation angle

    You can customise the angle of oscillation for your machine. Choose from a range between 45° up to 350°.

  • Adjusting the airflow

    Both the speed and direction of airflow can be adjusted. For powerful, personal cooling from the front, or diffused air diverted through the back of the machine.

  • Sleep timer and Night mode

    Set the Sleep timer to turn your purifier off, or use Night mode for the quietest settings and a dimmed screen.

Understanding the LCD screen

Understand your air quality live reports from the LCD screen.

  • Air quality graph

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

  • PM2.5 level

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

  • PM10 level

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

Understanding pollutant levels

When a pollutant reduces your air quality, its icon appears on screen. In this case, PM10. The coloured bar on the left indicates how much of the pollutant is present, and will continually update as the machine purifies your air.

  • Good

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

  • Fair

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

  • Poor

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

  • Very poor

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

Maintaining your machine

Replace your filter when prompted to keep your machine working at its best.

A filter life notification on the MyDyson app

Receive filter alerts1

With your machine connected to the MyDyson™ app, you get a helpful reminder when it’s time to replace the filter.

Filters

Replacing the filter

To ensure optimum air purification performance, we recommend replacing your HEPA+K-Carbon filter every 12 months. Your Catalytic filter never needs replacing.

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A person removing the shroud on the purifier to change the filter

Frequently asked questions

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

If you're concerned by the brightness of your purifier heater's LCD display, consider enabling Night-time mode using your remote control or the MyDyson™ app. During operation, a small moon icon indicates that your purifier heater 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 purifier heater'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 purifier heater will remain idle until pollutant levels rise.

Your purifier heater’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 purifier 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 purifier 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.

The HEPA+K-Carbon filter needs to be changed after 12 months2, based on 12 hours’ use a day. The Dyson Catalytic filter is permanent, so you don’t need to change it.

1App functionality may vary per market. Requires Wi-Fi and app enabled device. Standard data and messaging rates may apply. Requires iOS version 15 or above, or Android version 8 or above. Your mobile device must have Bluetooth 4.0 support. Refer to the MyDyson app for compatible voice services.

  • Formaldehyde level

    Electrochemical cell precisely detects formaldehyde for the lifetime of the machine.

  • Volatile Organic Compounds level

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

  • NO2 level

    Shows oxidising gases such as NO2 – includes cigarette smoke, car emissions, candles and gas stoves.

  • Filter life

    Shows how much filter life remains on the HEPA+K-Carbon filter. So you know when to replace it.