Dyson Big+Quiet Formaldehyde Air Purifier, Nickel/Blue

Dyson's quietest, most powerful air purifier yet. Purifies rooms up to 100m¹, evenly.

Long range projection and circulation

Projects air over 10 metres to purify a large space.¹ Quietly. This purifier uses cone aerodynamics to deliver powerful, long range projection – circulating air and driving even distant pollutants back through sealed filters. For whole-room purification, even in large spaces) ¹.

Quiet, even at full power

An acoustically engineered motor bucket records just 56dBA of sound power at full-speed. With no compromise on performance.

Advanced 360 filtration system

The HEPA H13 grade filter captures 99.95% of ultrafine particles as small as 0.1 microns², while an activated carbon filter removes odours and gases³.

Destroys formaldehyde, permanently (4)

A catalytic filter continuously traps and breaks down formaldehyde molecules into water and CO2 (4). And it never needs replacing.

Senses and reports on air quality, automatically

A suite of intelligent sensors detects pollutants across your whole room. Analysing your air at a molecular level – automatically reacting to purify and display live results on the LCD screen and in the MyDyson™ app⁵

Control your air quality wherever you are

The MyDyson™ app gives you autonomy over your air quality⁵. Set schedules, monitor air quality levels in your home, track filter life and more with the MyDyson™ app.

1 The ability of purifying a large room up to 100m2 (10m*10m) proven from a Computational Fluid Dynamics (CFD) modelling, with the purifier placed in a corner of the room running at the maximum flow and horizontal projection reaching 10 metres to fully mix the room. The projection distance was measured from internal flow reach testing under the maximum directional airflow. The actual performance in real life condition may vary.

2 Tested for filtration efficiency at 0.1 microns (EN1822, ISO29364).

3 Tested to JEM 1467 (acetic acid, acetaldehyde, ammonia), GB/T18801 (formaldehyde, benzene) and DTM-003282 (NO2). Gas capture rates vary.

4 Third party full machine testing based on GB/T 18801-2022 formaldehyde cumulative clean mass testing with continuous injection until plateau of formaldehyde CADR is achieved. Results may vary in practice.

5 App functionality may vary per market. Requires Wi-Fi and app enabled device. Standard data and messaging rates may apply. Requires iOS version 10 or above, or Android version 5 or above. Your mobile device must have Bluetooth 4.0 support.

Security software updated for this machine will be supported until 31/12/31.