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Dyson HEPA Cool Formladehyde
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Dyson HEPA Cool Formladehyde
Dyson HEPA Big+Quiet Formaldehyde

Dyson HEPA Big+Quiet Formaldehyde

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.

HEPA filter
HEPA filter

Genuine Dyson HEPA Filter lifespan is 5 years.

Activated carbon filter
Activated carbon filter

Captures NO₂. Genuine Dyson Activated Carbon Filter lifespan is every 2 years or when alerted by the MyDyson™ app.

Frequently asked questions

How noisy is the purifier?

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.

Other purifiers claim “HEPA” standard – why is Dyson special?

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.

Why do some competitor machines have a lower dB reading than Dyson purifiers?

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.

Why does the new purifier have a CO₂ sensor?

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.