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Dyson purifier hot cool formaldehyde
Dyson purifier hot + cool formaldehyde™

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

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.

  • Graphic comparison of CADR test v Dyson test
  • Graphic comparison of CADR test v Dyson test

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.

Internal sensing technology and LCD screen showing formaldehyde detected

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.

Graphic of Dyson filtration system

Captures and destroys with an advanced HEPA filtration system

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

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.

Graphic showing fully sealed purifier

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.

Dyson purifier hot + cool formaldehyde heating the whole room

Fast, even room heating

Air Multiplier™ technology projects purified, heated air throughout the room.⁴ Once your target temperature is reached, heating automatically stops.

Man controlling his purifier with the MyDyson app

Smart purification, controlled by app or voice

Control and monitor air quality from anywhere with the MyDyson™ app

  • Image showing powerful, cooling airflow
  • Purified air exiting the back of the purifier
  • Dyson purifier in a dark bedroom with someone sleeping peacefully
  • Someone changing their filter

Frequently asked questions

What is new about the Dyson Purifier range and how is it different to other purifiers?

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.

What is different about the Dyson Purifier Formaldehyde range?

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.

What is formaldehyde and what are common sources of it?

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.

How often should I replace my filter?

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.
Dyson filter

Filter replacements

Find the right filter for your purifier.