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Filter technology.

Dyson Pure Cool Filter technology

360° sealed filtration – removes gases and particulates.

The fully-sealed filter system combines an activated carbon filter to remove gases, and a Glass HEPA filter that captures 99.95% of microscopic allergens and pollutants as small as 0.1 microns.¹

Dyson Pure Cool filter close up capturing pollutants

Glass HEPA filter.

9 meters of borosilicate microfibers, pleated over 238 times, to capture 99.95% of harmful ultrafine particles. ¹

Dyson Pure Cool Glass HEPA borosilicate fibers close up

Activated Carbon filter.

Tris impregnated carbon granules capture gases such as formaldehyde, benzene and nitrogen dioxide.1

Dyson Pure Cool carbon filters captures gases magnified

Pollutants include:

  • Close up of PM 10 particles

    PM 10

    Pollen and allergens

  • Close up of PM 5.0 particles

    PM 5.0

    Bacteria and mould

  • Close up of PM 2.5 particles

    PM 2.5

    Industrial emissions

  • Close up of PM 0.1 particles

    PM 0.1

    Ultrafine particles

  • Close up of Nitrogen dioxide particles


    Carpets, rugs and flooring

  • Close up of Formaldehyde particles


    Household fumes and cooking

  • Close up of Benzene particles

    Benzene and VOCs

    Cleaning products and scented candles

  • Close up of Ozone particles

    Nitrogen dioxide

    Gas hobs and cooking fumes

Using a unique algorithm, the Dyson Pure Cool™ purifying fan processes the input from three sensors to continually monitor the room air quality.

It uses this information to activate the machine and keep room pollution levels low.

Particulate sensor
Uses laser measurement for constant particulate concentration analysis.

Nitrogen Oxide sensor
Detects Volatile Organic Compounds (VOCs) and oxidising gases such as NO2.

Humidity and temperature sensor
Constantly monitors the relative humidity and temperature levels within the room.

Dyson Pure Cool sensor close up

Powerful Air Multiplier™ technology.

Air Multiplier™ technology delivers over 290 litres per second of smooth, yet powerful airflow –circulating purified air throughout the whole room.²

Dyson Pure Cool delivering 290 liters of powerful airflow per second

Two airflow modes.

An air valve mechanism is driven by a brushless stepper motor, to allow remote actuation and switching between Diffused mode and Fan mode. The stepper motor drives a pinion gear, which turns a rotational baffle driver around the arc of the amplifier. Angled slots in the baffle driver move the baffle forwards and backwards.

Dyson Pure Cool two airflow modes

Forward projection

The baffle stays in plays to deliver a forward powerful stream of purified air.

Dyson Pure Cool diffused projection breakdown

Diffused projection

The baffle moves to block the front aperture and diverts air through the rear of the annular at a 45° angle, creating a more diffused airflow. This uses less energy and is quieter because the aperture is wider. Purification effectiveness is still maintained, without the 'draught.'

Dyson Pure Cool diffused projection breakdown


The Dyson Link app

Dyson pure cool tower with link app

Direct from Dyson

¹ Gaseous capture tested to JEM 1467 (acetic acid, acetaldehyde, ammonia) and GB/T18801 (formaldehyde, benzene). Gaseous capture rates vary. Tested to EN1822 - airborne particles as small as PM0.1.

² In max setting. Tested to Dyson internal test method TM-003711 in a 27m2 room. 'Harmful' / 'Ultrafine' pollutants refers to airborne particles as small as PM0.1 (tested to EN1822).

*Lab tested to EN1822 - airborne particles as small as PM0.1.

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