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Dyson Purifier Humidify+Cool Formaldehyde - PH04 - White/Gold

Regular price $1,039.99 USD
Regular price Sale price $1,039.99 USD
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Latest generation

Automatically purifies and hygienically humidifies for a healthier environment.

Detects and destroys formaldehyde

Detects and destroys formaldehyde released from household items.¹

Traps pollutants and removes bacteria

Traps pollutants and removes 99.9% of bacteria in the water to deliver cleaner, hydrated air.²


Intelligently purifies, humidifies, and cools you.

Advanced filtration

360° filtration uses activated carbon to remove gases and odors, a HEPA filter to capture 99.97% of particles 0.3 microns in size.

Destroys formaldehyde

From wood flooring and rugs, to furniture and fabrics, many household items can release formaldehyde for years. Dyson’s most advanced purification technology detects and destroys formaldehyde, continuously.¹

Fully sealed to HEPA H13 standard

It's not just the filter that's fully sealed, it's the whole purifier humidifier. So what goes inside stays inside.⁴

Purifies and humidifies the room

Air Multiplier technology circulates purified, humidified air throughout the whole room.³

Senses and reports

Automatically senses and reacts to changes in air quality and humidity - then reports them in real time on LCD screen and Dyson Link app.⁵

Three fan modes

Choose between Fan mode for direct cooling with your choice between 0 and 90° oscillation, Breeze mode to mimic a refreshing breeze, and Backwards airflow mode to purify and humidify without cooling you.

Night mode

The machine monitors, purifies and humidifies using the quiet settings, with a dimmed display.


Program your machine to turn off after pre-set intervals between 30 minutes and 8 hours.

Hassle-free deep clean cycle

Thoroughly eliminates mineral build-up and bacteria throughout the water system at the touch of a button. Low maintenance easily-to-replace filters. Both with built-in notifications when they require maintenance.


Curved and magnetized remote stores neatly on top of the machine.

Voice Service Compatible

Control your machine with simple, spoken instructions. Works with Amazon Alexa and Apple Siri.

¹Third party full machine testing based on GB/T 18801-2015. Results may vary in practice

²Tested to DTM-004533.

³Tested for purification coverage in an 81m³ chamber. Tested for humidification coverage in a 41m³ chamber.

⁴Tested with particle challenge per EN1822 in a chamber per ASTMF3150. Tested at maximum fan speed.

⁵Requires device to run app, 2.4GHz or 5GHz Wi-Fi connection or mobile data, and Bluetooth 4.0 support. For app compatibility, please search for ‘Dyson Link’ on the iOS App Store or the Google Play Store. Standard data and messaging rates may apply. Voice control requires a compatible voice service.