Dyson Purifier Humidify+Cool Formaldehyde PH04 (White/Gold)
Purifies the whole room.¹ Hygienically humidifies.² Cools you. Connects to the MyDyson™ app.
Only at Dyson: Exclusive technology and White/Gold colourway.
Free shipping
Canada’s #1 Most Trusted Air Purifier brand*
2-year warranty
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 99.97% of particles as small as 0.3 microns³ and a catalytic filter destroys formaldehyde.¹ Air Multiplier™ technology then projects purified, humidified air throughout the room² – cooling you when required.
Only at Dyson: Exclusive technology and White/Gold colourway.
Specifications
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Weight
8.2 kg
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Product diameter (skirt)
312 mm
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Product diameter (shrouds)
280 mm
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Height
923 mm
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Length
312 mm
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Width
280 mm
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Dyson Purifier Humidify+Cool Formaldehyde PH04 (White/Gold)
Overall rating
In the box
Dyson Purifier Humidify+Cool Formaldehyde PH04 (White/Gold)
Purifies and hygienically humidifies the whole room¹ and cools you in summer
Our purifying humidifiers help maintain a cleaner, more comfortable environment all year round. They also deliver cooling airflow whenever you need it.
Machine highlights
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Circulates purified humidified air and cools
Dyson Air Multiplier™ technology circulates purified and humidified air throughout the room,⁸ and cools you in warmer weather.
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Night mode and Sleep timer
Purifies using its quietest settings and a dimmed display. Sleep timer enables pre-set intervals of use, between 15 minutes and 9 hours.
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Real data in real time
Control and monitor your air quality from anywhere using the MyDyson™ app.¹⁰
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Smart technology with voice control
Control hands-free, using compatible voice services such as Amazon Alexa, Google Assistant or Siri.¹⁰
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Continuous hygienic humidification
An efficient water management system and a one gallon tank give you up to 36 hours of hygienic humidification without regular refilling.
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Simple filter changes
Quick and easy filter changes. With automatic reminders on the LCD screen or MyDyson™ app.
Discover the pioneering technology inside
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Senses and reports, automatically
In Auto mode our purifier reacts automatically to capture pollutants, only using energy when needed. With live air quality reports displayed on the LCD screen or MyDyson™ app.
Senses and reports, automatically
In Auto mode our purifier reacts automatically to capture pollutants, only using energy when needed. With live air quality reports displayed on the LCD screen or MyDyson™ app.
Captures gases and ultrafine particles
HEPA H13 filter captures 99.97% of particles as small as 0.3 microns.³ Activated carbon removes odours and gases, including VOCs.⁵
Captures gases and ultrafine particles
HEPA H13 filter captures 99.97% of particles as small as 0.3 microns.³ Activated carbon removes odours and gases, including VOCs.⁵
Fully sealed to HEPA H13 standard⁹
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 machine. So what goes inside, stays inside.⁹
Fully sealed to HEPA H13 standard⁹
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 machine. So what goes inside, stays inside.⁹
Hygienically humidifies with UV light
Dyson Ultraviolet Cleanse technology exposes every drop of water to a powerful λ275nm UV light to destroy 99.9% of bacteria in the water.²
Hygienically humidifies with UV light
Dyson Ultraviolet Cleanse technology exposes every drop of water to a powerful λ275nm UV light to destroy 99.9% of bacteria in the water.²
Destroys formaldehyde in billions of catalytic tunnels
Dyson's unique catalytic filter continuously traps and converts formaldehyde into water and CO₂. And it never needs replacing.⁶
Destroys formaldehyde in billions of catalytic tunnels
Dyson's unique catalytic filter continuously traps and converts formaldehyde into water and CO₂. And it never needs replacing.⁶
10 airflow speeds with Breeze and Diffused modes
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Breeze mode
Unique algorithms vary the airflow to mimic a cooling, refreshing breeze.
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Diffused mode
Diverts airflow through the back of the machine. To purify and humidify, without cooling you.
Frequently asked questions
We've re-engineered our latest purifier humidifier to be fully sealed - what goes inside, stays inside. With a hassle-free Deep clean cycle that removes 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™ 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.⁵
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Allergens
An allergen is a substance that can cause an allergic reaction by triggering the body’s immune system. Common indoor allergens include dust mite droppings, pet dander, mold, and pollen.
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Bacteria
Microscopic, single-celled organisms that exist in their millions, in every environment. Not all bacteria are harmful, but some can have adverse effects, such as E. coli.
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Benzene
Benzene is colourless, flammable liquid produced by both natural and man-made processes. It’s a natural part of crude oil, gasoline, and cigarette smoke. Indoors, it comes from products such as glues, paints, furniture wax, and detergents.
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Carbon dioxide (CO₂)
A colourless greenhouse gas, which comes from the extraction and burning of fossil fuels. Increased CO₂ levels can impact cognitive function.
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Formaldehyde
This colourless, flammable gas is used in some building materials and household products. Sources can include some fabrics found in flooring and furniture, glues, paints, varnishes, air fresheners, and household cleaners.
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H1N1 virus
This subtype of Influenza A virus, also known as swine flu, caused a global flu outbreak. H1N1 produces respiratory infectious diseases in humans and pigs. Symptoms can be similar to seasonal flu.
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HEPA 13
HEPA (High Efficiency Particulate Air) is an air filter efficiency standard and a measure of a filter’s performance. To achieve this standard, filters must meet a minimum of 99.97% particle removal at the most penetrating particle size.
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Humidification
A process of increasing air moisture content through the addition of water vapour or steam. Humidifiers can add moisture to the air in dry conditions, creating a more comfortable indoor environment when needed.
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Microns
Airborne particles are usually described in microns. One micron is equal to one-millionth of a metre. The human eye can see debris and dust that are approximately 25 microns in size.
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Nitrogen dioxide (NO₂)
Nitrogen dioxide is a liquid below 21.2 °C and a gas at higher temperatures. It is toxic to humans in both states. Gas stoves and space heaters are the most common indoor sources of NO₂ emissions. Other sources include improperly vented furnaces and water heaters.
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Pet dander
Pet dander is made up of tiny particles of skin, saliva and urine, shed by animals with fur or feathers. Pet dander lingers in the air before settling on surfaces such as furniture, bedding, and fabrics. Exposure to these airborne particles can trigger allergies.
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Particulate matter (PM)
Particulate matter contains microscopic solids or liquid droplets, measured in microns. Indoor PM can be generated through many day-to-day activities such as cooking, cleaning, and the burning of candles and fires.
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Purification
The process of making something free of any contaminants or physical impurities. Air purification is designed to filter the air in your home – removing pollutants such as dust, allergens and viruses.
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Volatile organic compounds (VOCs)
Volatile organic compounds are potentially harmful gases found in many household products. Common sources include paints, varnishes, air fresheners, cosmetics, and cleaning products.
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Pollen
Pollen is a powdery substance released from seed plants as part of their reproduction process. It typically appears from trees in the spring, grasses in the summer, and weeds in the autumn. Pollen grains are among the most common allergens.
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House dust mites
Dust mites are tiny insects that commonly live in household dust. They are one of the biggest causes of allergies. Each gram of house dust contains approximately 1000 dust mites.
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Aspergillus mold
A common name for a visible group of fungi, mould thrives wherever there is dampness – sending out millions of spores into the air. Exposure to mould occurs via inhalation, skin contact, or ingestion.
¹ Third party full machine testing based on GB/T 18801-2022 formaldehyde cumulative clean mass testing with continuous injection until plateau of formaldehyde CADR is achieved. Results may vary in practice.
² Tested for purification coverage in an 2860ft³ chamber. Tested for humidification coverage in a 1447ft³ chamber.
³ Gas capture rates vary.
⁴ Tested to DTM-004533.
⁵ Requires device to run app, Wi-Fi or mobile data, Bluetooth 4.0 support, and iOS version 10 or Android version 5 (or above). Standard data and messaging rates may apply.
⁶ Based on fan speed 1.
⁷ Fan not air conditioning unit.
⁸Tested by a third-party laboratory. During use, compared to dry ambient air.
Compared to dry ambient air* Dyson purifiers were challenged with airborne influenza A (H1N1 virus), MS2 bacteriophage at an independent lab, using a 30 m3 chamber. After 60 minutes at maximum fan speed, the airborne concentration in the chamber was reduced up to 99.9 %. Real-life efficacy may vary.
*Voted most trusted Air Purifier brand by Canadian shoppers based on the 2025 BrandSpark® Canadian Trust Study.
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