Dyson's quietest, most
powerful air purifier yet.
Purifies rooms up to 1,000ft², evenly.¹
Engineered for professional environments such as offices, classrooms and hotels.
Standby power consumption
Low airflow setting
50 ltrs/second (793 GPM)
High airflow setting
90 ltrs/second (1,427 GPM)
HEPA filter life
21,900 hours⁴ (2.5 years based on 24hrs use)
Carbon filter life
8,760 hours⁴ (1 year based on 24hrs use)
25.5 lbs (11.57 kg)
32.7 in (830 mm)
17.1 in (434mm)
16.3 in (415 mm)
Dyson HEPA Big+Quiet Formaldehyde
Activated carbon filter
Workspaces can harbor pollutants such as Volatile Organic Compounds (VOCs), pollen and formaldehyde. Everyday items such as cleaning products and printers, furniture and flooring, can release potentially harmful gases, and remain in the air for many years.
Paint, varnishes and printers
Traffic, building materials and furniture
Fumes and cooking
Pollen, dust and allergens
Fully-sealed to HEPA H13 standard² to capture 99.97% of pollutants as small as 0.3 microns. Purifying rooms up to 1,000ft², evenly.¹
1.44 inch LCD screen displays carbon dioxide readings and airflow mode – senses and reports air quality levels in real time.
Three phases of purification draw pollutants in from all directions. And the whole machine is fully sealed to HEPA H13 standard² – so what goes in, stays in.
The solid-state formaldehyde sensor works simultaneously with a selective catalytic oxidization filter, to destroy formaldehyde molecules 500x smaller than 0.1 microns.
The HEPA filter contain 69 feet of borosilicate microfibers, pleated over 450 times, and lasts 21,900 hours.⁴
4.6 million ft² of activated carbon captures VOCs, and lasts 8,760 hours.⁴
Two airflow speeds to increase or decrease airflow when needed.
Our latest purifier is acoustically engineered to operate quietly – even at its highest power setting. So it reduces your exposure to pollution, without disturbing you at the office or in the classroom. It records just 55dBA of sound power at full speed.
In Dyson’s latest purifiers, it’s not just the filter that meets HEPA H13 standard², it’s the whole purifier. So they don’t just capture pollutants, they prevent them from leaking back into the air you breathe. High-pressure seals, combined with Dyson’s fully-sealed filtration system, means our whole purifier meets HEPA H13 standard.² So what goes inside, stays inside.
Some manufacturers publish dB ratings tested at low fan speeds, which can limit purification performance.
At Dyson we measure and publish sound levels dB(A) at maximum fan speed, where purification is at its optimum.
Increased CO₂ levels can impact cognitive function. Our latest purifier senses and reports CO₂ levels and notifies when they exceed recommended levels, alerting on the LCD screen when to ventilate.
¹Tested for PM2.5 purification in a 1074ft2 (41.7ft x 25.8ft) room. Results may vary in practice.
²Particle challenge by DEHS oil specified in EN1822 within a chamber specified in ASTM F3150. Tested in Max Mode, for whole machine efficiency above 99.95%.
³Third 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.
⁴Filter life is determined by dividing total dust load capacity by annual dust load. Annual dust load was calculated using GB/T 18801 daily mass formula. Results may vary in practice