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Dyson Purifier Hot+Cool™ Formaldehyde

Captures dust and allergens. Even destroys formaldehyde.1

Removes 99.95% of particles as small as 0.1 microns2

Purifies and heats the whole room3

Sealed to HEPA standard – what goes inside, stays inside4

Dyson purifier hot + cool formaldehyde

Buy direct from the people who made it

We test beyond the industry standard. For real living spaces.

Dyson engineers designed the POLAR test to challenge the industry test standard – measuring filtration, sensing and circulation to ensure the whole room is purified properly.

  • Graphic comparison of CADR test v Dyson test

    CADR is not a measure of purification performance in a real-size room 28.5m³

    Two additional fans boost circulation. Only one sensor measures air quality.

  • Graphic comparison of CADR test v Dyson test

    Dyson's POLAR test goes further to measure purification throughout a real-size room 81m³

    No additional fans. Nine different sensors to measure even-room air quality.

Poor air quality isn't just a problem outside. It's a problem inside too.

From pets and flowers, to sprays and stoves, our homes can trap pollutants in the air. That's why Dyson air purifiers automatically sense and remove them.

Pollutant sources in a living space and kitchen

Common household pollutants

  • Formaldehyde molecule

    Formaldehyde

    Painting, varnishes and printers

  • Benzene molecule

    Benzene and VOCs

    Traffic, building materials and furniture

  • Nitrogen dioxide molecule

    Nitrogen dioxide

    Road traffic, tobacco and fuel-burning heaters

  • Gas molecules

    Odours

    Fumes and cooking

  • Pollen

    PM10

    Pollen and allergens

  • Bacteria

    PM5.0

    Bacteria

  • PM2.5 particles

    PM2.5

    Industrial emissions

  • PM0.1 particles

    PM0.1

    Ultrafine particles

Senses and reports, automatically

Four sensors, including a solid-state formaldehyde sensor, interact with our unique algorithm to precisely diagnose, display and react to your air quality.

Internal sensing technology and LCD screen showing formaldehyde detected

Captures and destroys with advanced HEPA filtration

The HEPA+Carbon filter captures gases5 and 99.95% of particles as small as 0.1 microns.2 Our catalytic filter continuously destroys formaldehyde1.

Graphic of Dyson filtration system

Destroys formaldehyde in billions of catalytic tunnels¹

Dyson's unique catalytic filter continuously traps and converts formaldehyde into water and CO2. And it self-regenerates, so it doesn't need replacing.

Close up graphic of catalytic tunnel

The purifier is sealed to HEPA standard4, removing 99.95% of particles as small as 0.1 microns.2

To prevent pollutants leaking back into the air, it's not just the filter that's sealed to HEPA H13 standard,4 it's the whole purifier. So what goes inside, stays inside.

Graphic showing fully sealed purifier

Fast, even room heating

Air Multiplier™ technology projects purified, heated air throughout the room.3 Once your target temperature is reached, heating automatically stops.

Dyson purifier hot + cool formaldehyde heating the whole room

Smart purification, controlled by app or voice

Control and monitor air quality from anywhere with the Dyson Link app,6 or hands-free with compatible voice services.7

Find out more
Man controlling Dyson Purifier with Dyson Link app

Download the
Dyson Link app6

Download from iOS App Store
Download from Google Play store

Additional features

  • Image showing powerful, cooling airflow

    Cools you in summer

    Projects over 290 litres of air a second for cooling airflow.

  • Purified air exiting the back of the purifier

    Diffused mode. Purifies without cooling you.

    Airflow is diverted through the back of the machine, maintaining effective purification.

  • Dyson purifier in a dark bedroom with someone sleeping peacefully

    Night mode

    For lighter sleepers, it monitors and purifies using the quietest settings along with a dimmed display.

  • Someone changing their filter

    Easy filter care

    The catalytic filter doesn't need replacing. And when you need a new HEPA+Carbon filter, the Dyson Link app6 lets you know.

Frequently asked questions

Dyson engineers are perfectionists. Channelling our relentless dissatisfaction, we have re-engineered our latest’s purifiers so the whole machine is now sealed to meet HEPA H13 standard.4 Capturing 99.95% of ultrafine particles and preventing pollutants from leaking back into the air you breathe.

The Dyson Purifier Hot+Cool™ Formaldehyde has all of the capabilities found in our advanced purification products but goes a step further to detect and destroy formaldehyde. An added solid state-sensor precisely detects formaldehyde, while our catalytic filter breaks it down into two safer molecules – carbon dioxide and water.

Formaldehyde is a polluting gas formed of carbon, hydrogen and oxygen that is commonly found in homes. Common sources of formaldehyde in your home could be: paint and varnishes, air fresheners, mattresses, furniture, household cleaners, carpets, particleboard and plywood, electronics, dryer sheets, nail polish remover, moth balls, toys, fireplaces and wood burning stoves.

We recommend replacing the HEPA+Carbon filter every 12 months. That's because over time, filters can get clogged with pollutants, and even let unpleasant odours back into the room. The machine will alert you when it’s time to change filters. A filter life reading can be found on the LCD screen and via the Dyson Link app. The catalytic filter doesn't need replacing.

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Dyson Purifier Hot+Cool™ Formaldehyde purifying fan heater HP09 (White/Gold)

    HEPA H13 purifier, fan and heater.

    Detects and destroys formaldehyde¹.

    Captures gases, pollutants and allergens.

    Automatically senses and displays real time air quality.

    Connects to the Dyson Link app. For larger spaces.
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Filter replacements

Find the right filter for your purifier.

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1 Third party full machine testing based on GB/T 18801-2015 formaldehyde cumulative clean mass testing with continuous injection until plateau of formaldehyde CADR is achieved. Results may vary in practice.

2 Tested for filtration efficiency at 0.1 microns (EN1822, ISO29463).

3 In maximum setting. Tested for air projection, purification coverage in a 81m3 room and heating performance in a 35m3 room.

4 Particle challenge by DEHS oil specified in EN1822 within a chamber specified in ASTM F3150. Tested in Max Mode at IBR US, for whole machine efficiency above 99.95%.

5 Gas capture rates may vary.

6 Requires device to run app, Wi-Fi or mobile data, Bluetooth 4.0 support, and iOS version 10 or Android version 5 (or above). Standard data and messaging rates may apply. App control doesn’t apply to heating.

7 Refer to the Dyson Link app for compatible voice services.