Dyson Purifier Hot+Cool™ Formaldehyde
Captures dust, allergens and bacteria. Even destroys formaldehyde.
Removes 99.95% of ultrafine particles
Purifies and heats the whole room
Fully-sealed to HEPA standard – what goes inside, stays inside
Buy direct from the people who made it
Best Heater, Cooler and Air Purifier in one⁸
Powerful circulation to purify the whole room³
Only Dyson purifiers have Air Multiplier™ technology, to draw in distant pollutants and project purified air throughout the room.
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 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.
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 purifiers automatically sense and remove them.
Common household pollutants
Common allergens - pet dander, pollen and dust
Bacteria and mold spores
Industrial emissions and smoke
Carpets, rugs and flooring
Household fumes and cooking
Benzene and VOCs
Cleaning products and candles
Gas stoves and car exhausts
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.
The purifier is fully sealed to HEPA H13
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 purifier.⁴ So what goes inside, stays inside.
Fast, even room heating
Air Multiplier™ technology projects purified, heated air throughout the room.⁴ Once your target temperature is reached, heating automatically stops.
Download the MyDyson™ app⁶
Cools you when needed
Projects over 290 litres of air a second for cooling airflow.
Diffused mode. Purifies without cooling you.
Airflow is diverted through the back of the machine, maintaining effective purification.
For lighter sleepers, it monitors and purifies using the quietest settings along with a dimmed display.
Easy filter care
The catalytic filter never needs replacing. And when you need a new HEPA+Carbon filter, the MyDyson™ app⁶ lets you know.
Choose your model
Frequently asked questions
Dyson engineers are perfectionists. Channelling our relentless dissatisfaction, we have re-engineered the Dyson Purifier range to be our first purifiers fully sealed to HEPA H13 standard. Capturing 99.95% of ultrafine particles and preventing pollutants from leaking back into the air you breathe.
The Dyson Purifier 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 MyDyson™ app. The catalytic filter never needs replacing.
- 1 Third party full machine testing based on GB/T 18801-2018 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 an 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 14.0 or Android version 8.0 (or above). Standard data and messaging rates may apply. App control doesn’t apply to heating.
- 7 Refer to the MyDyson™ app for compatible voice services.
- 8 Based on the awards for electric heaters received by Good Housekeeping 2023.