Our quietest, most powerful purifier. The Dyson Purifier Big+Quiet Formaldehyde projects air over 10 meters to purify large spaces.

Quiet, even at full power
Acoustically engineered to operate quietly – even at its highest power settings. So, it continually reduces your exposure to pollution without disturbing you around the home.

Advanced 360° filtration system
Three phases of purification sit within a machine, fully sealed to HEPA H13 grade. Capturing 99.95% of ultrafine particles as small as 0.1 microns. Removes gases and odors.

Intelligent sensor system
A suite of intelligent sensors detects pollutants across a whole room and reports in real-time. Our unique algorithm cross-checks data every second, analyzing your air at a molecular level.

Engineered to purify large spaces
Tested thousands of times to ensure the sensors, filtration system, and motor work together to purify large spaces.

Unique selective catalytic filter
Dyson's unique catalytic filter traps formaldehyde in catalytic tunnels, continuously breaking it down into CO₂ and water. It never needs replacing.

360° HEPA H13 grade filter
Our re-engineered HEPA H13 grade filter is 3.8 times larger than its predecessor and captures 99.95% of ultrafine particles as small as 0.1 microns from the air.