Pay in 3 interest-free instalments | Free next-day delivery
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.
Specifications
-
Airflow at max. setting
253 l/s
-
Oscillation/Angle
90 degrees
-
Cord length
2 m
-
Number of speed settings
10
-
Total height
923 mm
-
Air treatment type
Purifier, fan and humidifier
-
Temperature settings
Yes
-
HEPA filter
HEPA H13
-
Weight
8.29 kg
-
Airflow at max. setting
350 l/s
-
Sound level
61 Decibel
-
Product diameter (skirt)
220 mm
![Dyson Purifier Humidify+Cool Formaldehyde](https://dyson-h.assetsadobe2.com/is/image/content/dam/dyson/products/air-treatment/purifier-humidify-cool/formaldehyde/PH04-spec-WHSGLD.jpg?$responsive$&fmt=png-alpha)
-
Height
92.3 cm
-
Length
31.2 cm
-
Width
28 cm
Buy from Dyson.co.uk
In the box
![](https://dyson-h.assetsadobe2.com/is/image/content/dam/dyson/images/categories/primary/Purifier%20Humidify%20Cool%20Formaldehyde.png?$responsive$&fmt=png-alpha)
Dyson Purifier Humidify+Cool™ PH04 Formaldehyde
Dyson Purifier Humidify+Cool™ PH04 Formaldehyde
Security software updates for this machine will be supported until 31/12/31.
Features
-
Circulates purified humidified air
Dyson Air Multiplier™ technology mixes and circulates purified, humidified air throughout the room.
-
Cools you
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
Auto mode
Constantly monitors your air quality, automatically adjusting airflow to reach and maintain the most comfortable humidity level.
Diffused mode
Diverts airflow through the back of the machine. To purify and humidify, without cooling you.
Voice control
Control it hands-free with compatible voice services, including Amazon Alexa, Siri and Google Assistant.⁹
Continuous humidification
An efficient water management system and a one gallon tank give you up to 36 hours* of hygienic humidification without regular refilling.
Breeze mode
Unique algorithms vary the airflow to mimic a cooling, refreshing breeze.
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.
Night mode
Purifies using the quietest settings and a dimmed display. Sleep timer enables pre-set intervals of use, between 15 minutes and 9 hours.
Jet Axis control
Two oscillators guide the airflow – projecting separately, or in unison, so you can choose different airflow modes.
Simple filter changes
Built-in reminders show you when your combination filter needs changing. It's quick and easy to do.
Technology
-
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
Choose your model
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.⁶ With a hassle-free Deep clean cycle that eliminates mineral build-up throughout your machine's water system.
Are Dyson Purifier Humidifiers good for your skin?
Through robost scientific testing, we found that humidified air from the Dyson Purifier Humidfy+Cool range results in higher skin hydration over a three-hour period compared to dry air, particularly if the skin was previously exposed to dry environmental conditions. Thereby, we can confidently say that they help keep your skin hydrated.
How do Dyson Purifier Humidifiers benefit your skin?
The Dyson Purifier Humidify+Cool range automatically maintains the target level of moisture in the air and with auto mode, scans the air for the signs of dryness, kickstarting the machine to humify the air only when needed. Through Dyson ultraviolet cleanse technology, every drop of water if further exposed to a powerful 275nm UV light that allows for only cleansed water to rehydrate the purified air abck into the whole room.
What is different about the Dyson Formaldehyde range?
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.
What is formaldehyde and what are common sources of it?
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.
Where should I place the purifier humidifier in my room?
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.
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. You can select your water hardness with the MyDyson™ app. Running a Deep clean cycle helps to eliminate odours that occur through poor maintenance.
Glossary
-
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, mould and pollen.
-
Aspergillus mould
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.
-
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.
-
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.
-
Carbon dioxide (CO₂)
A colourless greenhouse gas, which comes from the extraction and burning of fossil fuels. Increased CO₂ levels can impact cognitive function.
-
Dust mites
House 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.
-
Formaldehyde (HCHO)
Formaldehyde is often associated with the familiar smell of fresh paint, or the unboxing of new furniture. It's a colourless, flammable and potentially harmful gas used in some building materials and household products. Sources can include fabrics found in flooring and furniture, glues, paints, varnishes, air fresheners, and household cleaners.
-
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.
-
HEPA
HEPA (High Efficiency Particulate Air) is an air filter efficiency standard and a measure of a filter’s performance. For an air filter to be classified as HEPA, it must be capable of removing at least 99.95% (ISO, European Standard) or 99.97% (ASME, U.S. DOE) of particles whose diameter is equal to 0.3 microns.
-
HEPA 13
HEPA H13 is an even higher tier of HEPA air filtration efficiency. To meet HEPA H13 standards, a filter must be able to remove 99.95% (ISO, European Standard) or 99.97% (ASME, U.S. DOE) of microscopic particles at the most penetrating particle size of 0.1 microns.
-
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.
-
Micron
Airborne particles are usually described in microns. One micron is equal to one-thousandth of a mm. The human eye struggles to see anything smaller than 25 microns in size. Allergens are microscopic. The size of dust mite allergens, mould spores and other insect allergens is often between 0.5 to 5 microns. To provide context, the diameter of a human hair is around 50 microns.
-
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.
-
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.
-
Particulate matter (PM)
PM stands for particulate matter, which consists of microscopic solid or liquid particles and pollutants. PM is often followed by a number, which represents the size of the particulate matter in microns (a micron is one-thousandth of a mm). For example, PM01 means particulate matter that is 0.1 of a micron in size. PM2.5 equals particles that are 2.5 microns in size, and PM10 means particles up to 10 microns in size. Indoor PM can be generated through many day-to-day activities, including cooking, cleaning and the burning of candles and fires.
-
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.
-
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.
-
Selective Catalytic Oxidisation (SCO)
SCO is an abbreviation for Dyson's Selective Catalytic Oxidisation filter, a specific type of filter engineered to capture and destroy formaldehyde at the molecular level. Dyson SCO filters break the pollutant down into tiny amounts of water and CO₂. Our filter then naturally regenerates from the oxygen in the air, so it can keep destroying formaldehyde continuously, without ever needing to be replaced.
-
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.
Find the right air purifier for you
Discover the most suitable machines for your home.
Buy from Dyson.co.uk