Dyson air purifiers are designed to improve the air quality in your home by removing pollutants, allergens, and odors. These devices have high-tech features like Air Multiplier technology, automatic pollutant detection and removal, solid-state formaldehyde sensing, HEPA 13 standard filtration, and quiet but strong airflow that can help make your home healthier and more comfortable.

Air Multiplier Technology

Air Multiplier Technology is a unique feature of Dyson air purifiers that significantly enhances their performance. This technology generates the circulation power to draw even distant pollutants into the machine, projecting purified air throughout the room. It works in conjunction with 360° filtration to mix and circulate purified air throughout the room.

The latest Dyson purifiers, such as the Dyson Purifier Cool FormaldehydeTM TP09, use this technology to ensure whole-room purification. The purifier uses Cone Aerodynamics, a new airflow delivery system that offers more than double the airflow of previous models, delivering up to 23 gallons of airflow per second. This powerful airflow can project purified air over 32 feet, making it suitable for large spaces.

Automatic Pollutant Detection and Removal

Dyson air purifiers are designed to automatically purify the air, removing up to 99.97% of allergens, pollutants, and gases. This is achieved through a combination of advanced filtration systems and intelligent sensors. The purifiers are equipped with three sensors that automatically monitor pollution events in real-time. These sensors interact with a unique algorithm to precisely diagnose, display, and react to air quality.

The purifiers are capable of capturing a wide range of pollutants, including common allergens such as pet dander, pollen, and dust, as well as gases like nitrogen dioxide and formaldehyde. The captured pollutants are trapped within the purifier, preventing them from leaking back into the air.

Solid-State Formaldehyde Sensing

The colorless gas pollutant formaldehyde can leak from a variety of household items, including furniture and wooden products made with formaldehyde-based resins, as well as DIY goods like paint, wallpaper, varnish, and cleaning supplies. It’s particularly difficult to capture due to its small size, and it can persist in the air for years.

Dyson’s Purifier Formaldehyde range is equipped with an intelligent solid-state sensor that can accurately sense formaldehyde levels without confusing them with other volatile organic compounds (VOCs). Unlike gel-based sensors that can dry out over time, Dyson’s solid-state formaldehyde sensor doesn’t dry out, ensuring its precision and performance over the lifetime of the machine.

In addition to sensing formaldehyde, Dyson’s Selective Catalytic Oxidization (SCO) filter captures and destroys the pollutant at a molecular level, breaking it down into tiny amounts of water and CO2. The filter regenerates from the oxygen in the air to continuously destroy formaldehyde without ever requiring replacement.

HEPA 13 Standard Filtration

Dyson air purifiers are fully sealed to the HEPA H13 standard, which means they are capable of capturing 99.95% of ultrafine particles and preventing pollutants from leaking back into the air. The HEPA H13 filter is particularly effective at removing the specific particle size that most readily makes it through that specific filter.

In addition to the HEPA H13 filter, Dyson purifiers also feature a carbon filter that captures gases and 99.97% of particles as small as 0.3 microns in size, including common pollutants such as allergens, dust, and smoke particulates.

The filters are designed to last for a significant period of time, with the machine alerting you when it’s time to change filters. For instance, the HEPA filter on the Dyson Purifier Big+Quiet Formaldehyde BP04 has a lifespan of 5 years. However, the exact lifespan of the filter can depend on how often you use the purifier.

Quiet and Powerful Airflow

Dyson’s air purifiers are designed to operate quietly without compromising their purification performance. The Dyson Purifier Big+Quiet Formaldehyde, for instance, is engineered to produce just 56 decibels of noise, making it Dyson’s quietest yet most powerful purifier. A Helmholtz silencer and a labyrinth seal are just two of the clever soundproofing solutions that were used in the careful re-engineering that made this operation possible.

Despite its quiet operation, the purifier delivers powerful airflow. It uses a re-engineered motor bucket to ensure quiet operation and a new airflow delivery system that offers more than double the airflow of previous models. This results in up to 23 gallons of airflow per second of purified air over 32 feet.

In addition to being quiet and powerful, Dyson’s air purifiers are also efficient. They use a three-phase filtration system that captures up to 99.97% of fine particles, removing 3x more NO2 compared to previous Dyson carbon filters. This ensures that the air in your room is not only circulated effectively but also thoroughly purified.


Dyson air purifiers offer a range of advanced Features that can help improve the air quality in your home. These devices have Air Multiplier technology, solid-state formaldehyde sensing, automatic pollutant detection and removal, HEPA 13 standard filtration, and quiet but strong airflow. They can help make your home healthier and more comfortable. If you’re looking for an effective way to purify the air in your home, consider investing in a Dyson air purifier.


How often should I change the filter in my Dyson Air Purifier?
Answer: The frequency of filter replacement depends on usage and air quality. Dyson recommends changing the filter every 6–12 months for optimal performance.

Can a Dyson Air Purifier eliminate all allergens from the air?
Answer: While no air purifier can completely eliminate all allergens, Dyson air purifiers are designed to capture and trap common allergens such as pollen, dust mites, and pet dander.

Is it safe to use a Dyson air purifier around pets or children?
Answer: Yes, Dyson air purifiers are safe to use around pets and children. They do not produce ozone emissions or emit harmful chemicals into the air. Additionally, they have been certified asthma- and allergy-friendly by the Asthma and Allergy Foundation of America (AAFA).


Hey there, I'm Kevin, editor of Xievo. I'm passionate about air purifiers and providing accurate information to help readers make informed decisions. In my free time, I love hiking and experimenting with air purifiers in my own home. Thanks for visiting Xievo!