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Specifications
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Fixed angle
50°
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Standby power consumption
<0.5w
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Quiet setting
43dBA
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Maximum setting
55.6dBA
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Cord length
1,800mm
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Low airflow setting
50 ltrs/second
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High airflow setting
90 ltrs/second
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HEPA filter life
Up to 10 years⁴
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Carbon filter life
Up to 4 years⁴
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Room coverage
1,000ft² ¹
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Weight
11.57kg
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Height
830mm
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Length
434mm
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Width
415mm
In the box
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Dyson HEPA Big+Quiet Formaldehyde
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Activated carbon filter
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HEPA filter
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Dyson purifiers remove these common pollutants from commercial environments
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Paint, varnishes and printers
Formaldehyde
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Traffic, building materials and furniture
Benzene and VOCs
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Fumes and cooking
Odours
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Pollen, dust and allergens
PM10
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Bacteria and mould
PM5
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Ultrafine particles
PM0.3
Senses, captures and destroys
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Senses and reports CO₂ levels
1.44 inch LCD screen displays carbon dioxide readings and airflow mode – senses and reports air quality levels in real time.
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Whole-machine HEPA 13 filtration²
Three phases of purification draw pollutants in from all directions. And the whole machine is fully sealed to HEPA H13 standard – so what goes in, stays in.
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Destroys formaldehyde, continuously³
The solid-state formaldehyde sensor works simultaneously with a selective catalytic oxidization filter, to destroy formaldehyde molecules 500x smaller than 0.1 microns.
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Powerful and quiet
The high-velocity, low-pressure system produces low noise levels of just 55.6dB.
Powerful and quiet
The high-velocity, low-pressure system produces low noise levels of just 55.6dB.
Acoustically engineered
The Helmholtz silencer traps sound energy and reduces low frequency noise, while the motor mount reduces vibration – so the little noise you hear, is quiet even at full power.
Acoustically engineered
The Helmholtz silencer traps sound energy and reduces low frequency noise, while the motor mount reduces vibration – so the little noise you hear, is quiet even at full power.
Additional features
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HEPA filter
The HEPA filters contain 69 feet of borosilicate microfibres, pleated over 450 times, and lasts up to 10 years.⁴
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Activated carbon filter
4.6million ft² of activated carbon captures VOCs, and lasts up to 4 years.⁴
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Single button operation
Two airflow speeds to increase or decrease airflow when needed.
Frequently asked questions
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 standard, 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.
Useful documents
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 at IBR US, 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 calculated using GB/T 18801 daily mass formula and filter capacity.10 year HEPA filter life and 4 year carbon filter life based on 2190 hours of use per year. Results may vary in practice.
