Skip navigation

Captures up to 99.9% of human coronaviruses 229E and OC43 aerosol 11. Even destroys formaldehyde.1

Captures H1N1, H3N2, EV71 viruses7, bacteria & allergens.

Purifies and heats the whole room3

Fully-sealed to HEPA H13 standard – what goes inside, stays inside4

Dyson purifier hot + cool formaldehyde

Buy from

Powerful circulation to purify the whole room

Only Dyson purifiers have Air Multiplier™ technology, to draw in distant pollutants and project purified air throughout the room.3

Dyson purifier hot+cool formaldehyde purifying a large living space

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.

  • CADR測試與 Dyson 測試圖比較圖

    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.

  • CADR測試與 Dyson 測試圖比較圖

    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. Formaldehyde can also be released from common household items like wood, indoor paints & furniture for years. That's why Dyson purifiers automatically sense and remove them.

Pollutant sources in a living space and kitchen

Common household pollutants

  • Formaldehyde molecule

    Formaldehyde (HCHO)

    Carpets, rugs and flooring

  • Odour particles


    Household fumes and cooking

  • Benzene molecule

    Benzene and VOCs

    Cleaning products and candles

  • Nitrogen dioxide molecule

    Nitrogen dioxide

    Gas stoves and car exhausts

  • Pollen particle


    Pollen and allergens

  • Bacteria



  • Particulate emissions


    Industrial emissions

  • Ultrafine particulate emissions


    Ultrafine particles

Removes up to 97% of common household odours*

*Tested for removal of grilled salmon and Korean barbeque odour, cat urine odour, tobacco smoke odour and garbage smell to EN 13725

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.

*Product and filter Images may vary depending on the market and production batch. Product performance is not impacted.
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 never needs replacing.

Close up graphic of catalytic tunnel

The purifier is fully sealed to HEPA H13 standard

To prevent pollutants leaking back into the air, it's not just the filter that's sealed to HEPA H13 standard, it's the whole purifier4. So what goes inside, stays inside.

Graphic showing fully sealed purifier

Engineered for pets

Captures 99.95% of small particles such as pet dander2. And removes up to 97% of cat urine odour10.

Engineered for pets

Keep your pet clean and comfortable with Dyson air purifiers

Keep your pet clean and comfortable with Dyson air purifiers

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

Control and monitor air quality from anywhere with the Dyson Link app6 or hands-free with compatible voice services8

Man controlling Dyson Purifier with Dyson Link app

Download the
Dyson Link app⁶

Additional features

  • Fully-sealed to HEPA H13<sup>4</sup> standard

    Fully-sealed to HEPA H134 standard

  • 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 never needs replacing. And when you need a new HEPA+Carbon filter, the Dyson Link app6 lets you know.

  • Allergy-friendly products

    Purifier Hot+Cool™ Formaldehyde HP09 is certified with the ECARF seal. It’s a special certification for allergy-friendly products.

Dyson Purifier Hot+Cool™ Formaldehyde (White / Gold) Reviews

Overall rating
5% of 100
Reviewed on 28/12/2022

Reliable product

Alex Kam

The hot air function works really well in the cold days especially the last few weeks in Hong Kong. Besides, the air condition is our room has been improved by far. The machine ...
Read More
almost operate 24 hours and so far so good.

Choose your model


Hot Item
  • Captures H1N1, H3N2, EV71 viruses and 99.95% of pollutants as small as 0.1 microns
  • Destroys formaldehyde continuously.
  • Fully sealed to HEPA H13 standard filtration
  • Auto senses and reports pollution in real time on Dyson Link App, enabled with voice control.
  • Whole-room purification for larger spaces
White/Gold - Selected colour Nickel/Gold
Trade-in your Dyson machines for upgrades as low as $5,744. Learn more.
MyDyson logo

Get more from your Dyson with the MyDyson™ app

Three phone screens showing the MyDyson app.

Care, from the people who made it.

Get more from your Dyson with the MyDyson™ app

  • Man using the app on his sofa

    Expert guides and content

    From quick-start and how-to guides to understanding different modes and screens. All tailored to you and your machines.

  • Exploded view of a Dyson purifier filter.

    Automated filter alerts

    You'll never need to worry about when it's time to replace your filter, as we'll let you know. Helping your machine to always perform at its best.

  • Dyson Expert in a Dyson Demo Store.

    Tailored 24/7 support

    Maintenance advice and troubleshooting, when you need it. You can also activate tailored machine support, direct to your inbox.

User Manual

Check your user guide online or download a copy

User Manual

Filter replacements

Find the right filter for your purifier.

Dyson filter

Buy from

Owner support

  • Register your machine

  • Find a replacement filter

  • Expert support

1Third 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.
2Tested for filtration efficiency at 0.1 microns (EN1822, ISO29463).
3In maximum setting. Tested for air projection, purification coverage in a 81m3 room and heating performance in a 35m3 room.
4Particle 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%.
5Tested to JEM 1467 (acetic acid, acetaldehyde, ammonia), GB/T18801 (formaldehyde, benzene) and DTM-003282 (NO2). Capture rates vary.
6Requires 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.
7Testing was done in third party lab SGS, refer to GB 21551.3 but challenge changed to related virus, testing in a 30m³ chamber with machine speed 10. The actual result may vary in practice.
8Refer to the Dyson Link app for compatible voice services.
9Tested for removal of grilled salmon and Korean barbeque odour, cat urine odour, tobacco smoke odour and garbage smell to EN 13725
10Tested by independent 3rd laboratory Olfasense UK Ltd. in 2022, referring to EN13725. Tests on cat urine odour was conducted in a 3m3 chamber, after 30 minutes of purification time, olfactory sensory experts made objective evaluations of the removal of odor. Actual usage may vary.
11Tested by independent 3rd laboratory CVC, referring GB 21551.3-2010 and T/SAEPI005-2020. Tests conducted in a 30m³ chamber at 10 speed for 90 minutes.
*Product and filter Images may vary depending on the market and production batch. Product performance is not impacted.