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7 We challenged our purifier with airborne influenza A (H1N1 virus) at an independent lab. After 60 minutes at maximum fan speed, the airborne concentration in the chamber was reduced by 99%. Real-life efficacy may vary.

We test beyond the industry standard. For real living spaces.

Dyson engineers designed the POLAR test to challenge the industry test standard – measuring filtration, sensing and circulation to ensure the whole room is purified properly.

  • CADR測試與 Dyson 測試圖比較圖

    CADR is not a measure of purification performance in a real-size room

    28.5m³ - Two additional fans boost circulation. Only one sensor measures air quality.

  • CADR測試與 Dyson 測試圖比較圖

    Dyson's POLAR test goes further to measure purification throughout a real-size room

    81m³ - No additional fans. Nine different sensors to measure even-room air quality.

Common household pollutants

  • Pollen particle

    PM10

    Pollen and allergens

  • Bacteria

    PM5.0

    Bacteria

  • Particulate emissions

    PM2.5

    Industrial emissions

  • Ultrafine particulate emissions

    PM0.1

    Ultrafine particles

  • Formaldehyde molecule

    Formaldehyde (HCHO)

    Carpets, rugs and flooring

  • Odour particles

    Odours

    Household fumes and cooking

  • Benzene molecule

    Benzene and VOCs

    Cleaning products and candles

  • Nitrogen dioxide molecule

    Nitrogen dioxide

    Gas stoves and car exhausts

Senses and reports, automatically

Four sensors, including a solid-state formaldehyde sensor, interact with our unique algorithm to precisely diagnose, display and react to your air quality.

Internal sensing technology and LCD screen showing formaldehyde detected

Captures and destroys with advanced HEPA filtration

The HEPA+Carbon filter captures gases5 and 99.95% of particles as small as 0.1 microns.2 Our catalytic filter continuously destroys formaldehyde1.

Graphic of Dyson filtration system

Destroys formaldehyde in billions of catalytic tunnels¹

Dyson's unique catalytic filter continuously traps and converts formaldehyde into water and CO2. And it self-regenerates, so it never needs replacing.

Close up graphic of catalytic tunnel

The purifier is fully sealed to HEPA H13 standard

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 purifier4. So what goes inside, stays inside.

Graphic showing fully sealed purifier

Fast, even room heating

Air Multiplier™ technology projects purified, heated air throughout the room.3 Once your target temperature is reached, heating automatically stops.

Dyson purifier hot + cool formaldehyde heating the whole room

Smart purification, controlled by app

Control and monitor air quality from anywhere with the Dyson Link app6 or hands-free with compatible voice services8

Man controlling Dyson Purifier with Dyson Link app

Download the
Dyson Link app⁶

Download from iOS App Store
Download from Google Play store

Additional features

  • Image showing powerful, cooling airflow

    Cools you in summer

    Projects over 290 litres of air a second for cooling airflow.

  • Purified air exiting the back of the purifier

    Diffused mode. Purifies without cooling you.

    Airflow is diverted through the back of the machine, maintaining effective purification.

  • Dyson purifier in a dark bedroom with someone sleeping peacefully

    Night mode

    For lighter sleepers, it monitors and purifies using the quietest settings along with a dimmed display.

  • Someone changing their filter

    Easy filter care

    The catalytic filter never needs replacing. And when you need a new HEPA+Carbon filter, the Dyson Link app6 lets you know.

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Dyson Purifier Hot+Cool™ Formaldehyde HP09 (White/Gold)

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  • HEPA H13 purifier, fan and heater.
  • Detects and destroys formaldehyde. Automatically senses and displays real-time air quality.
  • Whole-room purification for larger spaces.
  • Control using the Dyson Link app and compatible voice services.
HK$6,980.00
Learn more

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Direct Exclusive
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Dyson Purifier Hot+Cool™ Formaldehyde HP09 (Nickel/Gold)

Be the first to write a review
  • HEPA H13 purifier, fan and heater.
  • Detects and destroys formaldehyde. Automatically senses and displays real-time air quality.
  • Whole-room purification for larger spaces.
  • Control using the Dyson Link app and compatible voice services.
HK$6,980.00
Learn more

User Manual

Check your user guide online or download a copy

Filter replacements

Find the right filter for your purifier.

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1Third party full machine testing based on GB/T 18801-2015 formaldehyde cumulative clean mass testing with continuous injection until plateau of formaldehyde CADR is achieved. Results may vary in practice.
2Tested for filtration efficiency at 0.1 microns (EN1822, ISO29463).
3In maximum setting. Tested for air projection, purification coverage in a 81m3 room and heating performance in a 35m3 room.
4Particle challenge by DEHS oil specified in EN1822 within a chamber specified in ASTM F3150. Tested in Max Mode at IBR US, for whole machine efficiency above 99.95%.
5Tested to JEM 1467 (acetic acid, acetaldehyde, ammonia), GB/T18801 (formaldehyde, benzene) and DTM-003282 (NO2). Capture rates vary.
6Requires 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.
7We challenged our purifier with airborne influenza A (H1N1 virus) at an independent lab. After 60 minutes at maximum fan speed, the airborne concentration in the chamber was reduced by 99%. Real-life efficacy may vary.
8Refer to the Dyson Link app for compatible voice services.