Dyson Purifier Humidify+Cool Formaldehyde PH04
Detects and destroys formaldehyde, continuously.¹
Purifies and hygienically humidifies a whole room²
Lifetime solid-state formaldehyde sensor
Captures H1N1 virus⁴
Buy direct from the people who made it
A cleaner, more comfortable environment
The Dyson purifier humidifier is engineered to help improve your air quality. Its activated carbon filter neutralises gases, its HEPA H13 filter captures 99.95% of particles as small as 0.1 microns³ and a catalytic filter destroys formaldehyde.¹ Air Multiplier™ technology then projects purified, humidified air throughout the room² – cooling you when required.
Dyson Purifier Humidify+Cool™ PH04 Formaldehyde
Helpful tips about humidifying your air
Dyson purifier humidifiers let you achieve your desired humidity either automatically or manually. In Auto mode, just set it and forget it. In manual mode, the LCD indicates if you need to increase airflow – which may help you reach your target quicker. And remember, keeping your machine away from drafts and turning down your home’s heating or AC units can also improve performance.
Senses and reports, automatically
Three sensors constantly monitor your air – diagnosing pollutants at a molecular level and displaying live air quality in real-time reports.
Captures gases and ultrafine particles
Captures 99.95% of particles as small as 0.1 microns.³ Combined with activated carbon, it also removes odours and gases including VOCs.⁶
Destroys formaldehyde, continuously.¹
A catalytic filter continuously traps and breaks down formaldehyde molecules into water and CO₂. And it never needs replacing.
Precisely detects formaldehyde
A lifetime solid-state sensor detectsformaldehyde molecules – 500 times smaller than 0.1 microns.
Destroys potentially harmful bacteria
Dyson Ultraviolet Cleanse technology exposes every drop of water to a powerful λ275nm UV light, to hygienically humidify.
Fully sealed to HEPA H13 standard⁵
To prevent pollutants leaking back into the air, it's not just the filter that's sealed to HEPA H13 standard, it's the whole purifier humidifer.⁵
Circulates purified humidified air
Dyson Air Multiplier™ technology mixes and circulates purified, humidified air throughout the room.
In warmer weather, a powerful stream of purified, humidified airflow can cool you down.
Real data, real time
Control and monitor your air quality from anywhere using the MyDyson™ app.⁵
Constantly monitors your air quality, automatically adjusting airflow to reach and maintain the most comfortable humidity level.
An efficient water management system and a one gallon tank give you up to 36 hours* of hygienic humidification without regular refilling.
Purifies using the quietest settings and a dimmed display. Sleep timer enables pre-set intervals of use, between 15 minutes and 9 hours.
Diverts airflow through the back of the machine. To purify and humidify, without cooling you.
Unique algorithms vary the airflow to mimic a cooling, refreshing breeze.
Jet Axis control
Two oscillators guide the airflow – projecting separately, or in unison, so you can choose different airflow modes.
Control it hands-free with compatible voice services, including Amazon Alexa, Siri and Google Assistant.⁹
Deep clean cycle
Activate the machine's monthly hassle-free Deep clean cycle at the touch of a button. It will guide you through the simple step-by-step process.
Simple filter changes
Built-in reminders show you when your combination filter needs changing. It's quick and easy to do.
Airflow at max. setting
Number of speed settings
Air treatment type
Frequently asked questions
We've re-engineered our latest purifier humidifier to be fully sealed to HEPA H13 standard.⁶ With a hassle-free Deep clean cycle that eliminates mineral build-up throughout your machine's water system.
The Dyson Purifier Humidify+Cool™ Formaldehyde has all of the capabilities found in our advanced purification products but goes a step further to detect and destroy formaldehyde.¹ An added solid-state sensor precisely detects formaldehyde, while our catalytic filter breaks it down into two safer molecules – carbon dioxide and water.
Formaldehyde is a polluting gas formed of carbon, hydrogen and oxygen that is commonly found in homes. Common sources of formaldehyde could be: paint and varnishes, air fresheners, mattresses, furniture, household cleaners, carpets, particleboard and plywood, electronics, dryer sheets, nail polish remover, moth balls, toys, fireplaces and wood burning stoves.
Your Dyson Pure Humidify+Cool™ Formaldehyde 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.
Yes. The machine works as a purifier humidifier, or just a purifying fan.
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. You can select your water hardness with the MyDyson™ app. Running a Deep clean cycle helps to eliminate odours that occur through poor maintenance.