Dyson PH3A Purifier Humidify+Cool Autoreact - air purifier, humidifier & fan

Captures dust, allergens and bacteria.
Our latest machine purifies and hygienically humidifies a whole room1 – removing 99.9% of bacteria in the water² with Dyson Ultraviolet Cleanse technology.

It has advanced sensing with three sensors to constantly monitor your air quality, automatically reacting to purify, maintain your target humidity and report results in real time.

Two layers of purification clean your air, with HEPA H13 and activated carbon to capture gases and 99.95% of pollutants as small as 0.1 microns.4 And the whole purifier, not just the filtration system, is fully-sealed to HEPA H13 standard – so what goes inside, stays inside.

Only Dyson purifiers have Air Multiplier™ technology, to purify and humidify the whole room.1 It generates powerful circulation, drawing pollutants from every corner into the filters and projecting purified, humidified air throughout the room.

The Dyson hassle-free Deep clean cycle thoroughly eliminates limescale throughout your machine's water system – at the touch of a button.

Improve the air quality inside your home
Pollution isn't just a problem outside. In fact, the average home can be up to five times more polluted than the air outside3. On top of this, dry air from central heating and air conditioning can affect the air we breathe. Fortunately, we have a solution to both – all year round.

Senses and reports, automatically
Three sensors constantly monitor your air. Our unique algorithm diagnoses pollutants at a molecular level – reacting to purify and humidify before displaying live air quality in real-time reports.

Why humidification matters
Our machine has in-built intelligence that can help with dry air by adding moisture automatically. This optimises humidity levels in the air by projecting an invisible stream of evaporated water – with no mist.

And purification too
Many household items release pollutants like pollen, dust, pet allergens, odours and smoke. Dyson purifiers sense and capture them, in advanced HEPA and carbon filters.

Dyson purifier humidifiers are tested beyond the industry standard
We test our purifier humidifiers in a room size of 81m³, with nine sensors that continuously measure air quality. Some other manufacturers use a small 28.5m³ chamber, with only one sensor and a fan to boost circulation.

Captures pollutants with advanced HEPA filtration
A carbon filter removes gases such as benzene and HEPA filter captures 99.95% of particles as small as 0.1 microns.2

Destroys potentially harmful bacteria
Dyson Ultraviolet Cleanse technology exposes every drop of water to a powerful λ275nm UV light. This kills 99.9% of bacteria in the water. Cleansed water is then evaporated by the biostatic 3D air mesh, before hygienic, humidified air is projected throughout the room.