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Dyson Purifier Humidify+Cool Autoreact logo
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Dyson Purifier Humidify+Cool Autoreact logo
Dyson Purifier Humidify+Cool Autoreact

Dyson Purifier Humidify+Cool™ PH3A Autoreact (White/Silver)

During winters, dry air can cause your skin to lose moisture. Dyson Purifier Humidifiers are scientifically proven to help keep your skin hydrated and maintain maintain the moisture balance in your skin.*

Captures dust, allergens and viruses*, including COVID-19 virus.*

Purifies and hygienically humidifies the whole room⁴, and cools you

HEPA 13 filter captures 99.95% of pollutants as small as 0.1 microns²

Control with remote. Not app compatible.

Power supply
Power supply

Power supply for your Dyson purifier humidifier.

360° Glass HEPA and Activated Carbon Filter
360° Glass HEPA and Activated Carbon Filter

Sealed HEPA filter made from borosilicate microfibres, pleated hundreds of times, to capture 99.95% of ultrafine particles³ with activated carbon filter to remove gases and odours.

Remote control
Remote control


  • Product diameter (skirt)

    312 mm

  • Product diameter (shrouds)

    280 mm

  • Weight

    8.05 kg

Dyson Purifier Humidify+Cool (White Silver)
  • Height

    923 mm

Dyson Purifier Humidify+Cool™ PH3A Autoreact (White/Silver)

Overall rating

81% of reviewers would recommend to a friend.

Does the job but could do better

Jeffy Duck

The product does the job, humidifies and filters the air without leaving a mess like regular humidifiers, its pretty cool that when you set the fan and humidity controls to automatic and it senses bad air it will automatically run at higher fan speeds and gradually lower as the air quality gets better. Down side is the software response time between the remote control and the unit itself, for example I adjusted the air speed and wanted to adjust himidity control or show a different information in the screen, I'll have to wait about 2 seconds for it can take a different remote command and another possible issue is if you misplaced the remote then controlling the unit is impossible

Frequently asked questions

What is new about the Dyson purifier humidifier and how is it different to other purifier humidifiers?

We've re-engineered our latest purifier humidifier to be fully sealed to HEPA H13 standard.⁵ With a hassle-free Deep clean cycle that  eliminates mineral build-up throughout your machine's water system.

Where should I place the purifier humidifier in my room?

Your Dyson Pure Humidify+Cool™ is engineered to purify and humidify single rooms, so you should use it where you spend the majority of your time at home. When placing the machine, make sure there's at least a few feet of clearance on all sides, so that the air can circulate effectively. Close doors and windows and place away from air vents.

Can I switch off humidification?

Yes. The machine works as a purifier humidifier, or just a purifying fan.

How often should I run a Deep clean cycle?

This depends on the water hardness where you live. The machine prompts you to run the cycle once a month in hard water areas. It prompts you less often in softer water areas. Running a Deep clean cycle helps to eliminate odours that occur through poor maintenance.