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The Dyson indoor pollution guide

Cooking, cleaning, even getting ready for work can release inhalable pollutants into your home.

Dyson air purifiers automatically diagnose your air quality – sensing and capturing airborne particles, and displaying real-time reports on the LCD screen or your MyDyson™ app.

A man cooking on a gas hob with an air quality graphic line indicating indoor pollution levels.

Explore Dyson air purifier range

  • BP04

    Quiet large space purification

    Quietly projects air over 10m to purify a large space with 5x longer HEPA H13 grade filter.

  • HP09

    Purification against formaldehyde

    Detects and destroys formaldehyde for whole-room purification and cooling.

  • TP09

    Intelligent purification and cooling

    Auto senses and purifiers rooms from 99.95% of allergens while cooling.

  • TP00

    Purifying Fan

    Powerful airflow with no fast-spinning airblades. No blades, no choppy air.

Common pollutants found indoors and outdoors

Advanced HEPA filtration removes dust and allergens

The fully-sealed 360° HEPA filter captures 99.95% of ultrafine particles from the air.1 Combined with activated carbon, it also removes odours and potentially harmful VOCs.2 Dyson’s unique catalytic filter also continuously traps and destroys formaldehyde molecules3 – and never needs replacing.

HEPA filter - common pollutants

Three key things to look for in an air purifier

Automatic sensing, a fully-sealed machine and long-range air projection are key to effective air purification. That's why they're at the core of our technology. And why we've been testing them for generations.

A Dyson purifier with an air quality graphic line indicating a drop in indoor pollution.
  • A close-up of the LCD screen on a Dyson air purifier.

    Automatic sensing

    Reacts automatically to remove pollutants, only using energy when needed.1

  • A Dyson purifier on top of a box with no pollutants leaking out.

    Fully-sealed machine

    Fully sealed to HEPA H13 standard. So the pollution captured inside stays inside.2

  • A man and woman setting the table in an open plan kitchen and dining area

    Long-range air projection

    Dyson Air Multiplier™ technology projects purified air into every corner of the room.3

Find the right purifier for you

Try our indoor air pollution guide and find out which purifier is right for you and your home.

Choose your model

Dyson HEPA Big+Quiet Formaldehyde

Direct Exclusive
  • Projects air over 10m. Quietly.1 Purifies up to 1000 ft² spaces.2
  • Detects and destroys formaldehyde, permanently.7
  • Exclusive K-Carbon filter - captures 3x more NO2.17
  • Exclusive CO2 sensor - notifies you when CO2 levels exceed recommended volumes.9
  • HEPA H13 filter lasts for 5 years.8
  • Connects to the MyDyson™ app.
HK$8,180.00

Dyson HEPA Big+Quiet Formaldehyde

Latest Technology
  • Projects air over 10m. Quietly.1Purifies up to 1,000 ft2 spaces.2
  • Captures bacteria3, viruses4 & allergens and 99.95% of ultrafine particles.5
  • Removes gases and odours.6
  • Detects and destroys formaldehyde, permanently.7
  • HEPA H13 filter lasts for 5 years.8
  • Connects to the MyDyson™ app.
HK$7,880.00

Dyson Purifier Hot+Cool™ Gen1

New
  • Captures dust, allergens, bacteria & H1N1 viruses.
  • Whole-room purification. Heats and cools you.
  • Control with remote. Not app compatible.
HK$4,480.00

Dyson Purifier Cool™ Gen1

New
  • Captures dust, allergens, bacteria & H1N1 viruses.
  • Whole-room purification. Cools you.
  • Control with remote. Not app compatible.
Was HK$3,480.00 HK$3,080.00 Save HK$400.00

Dyson Purifier Hot+Cool Formaldehyde™

Hot Item
  • Join Dyson Purifier Upgrade Programme for a $500 coupon code. Learn more.
  • Captures H1N1, H3N2, EV71 viruses and 99.95% of pollutants as small as 0.1 microns
  • Destroys formaldehyde continuously.
  • Fully sealed to HEPA H13 standard filtration
  • Auto senses and reports pollution in real time on Dyson Link App, enabled with voice control.
  • Whole-room purification for larger spaces
White/Gold - Selected colour Rich Copper/Bright Nickel
Was HK$7,180.00 HK$6,680.00 Save HK$500.00

Dyson Purifier Cool Formaldehyde™

  • Join Trade-in Programme for a $500 coupon code. Click here for details.
  • Captures H1N1, H3N2, EV71 viruses and 99.95% of pollutants as small as 0.1 microns
  • Destroys formaldehyde continuously.
  • Fully sealed to HEPA H13 standard filtration
  • Auto senses and reports pollution in real time on Dyson Link App, enabled with voice control.
  • Whole-room purification for larger spaces
White/Gold - Selected colour Nickel/Gold
HK$6,180.00

Dyson Purifier Hot + Cool

Popular
  • Join Trade-in Programme for a $400 coupon code. Click here for details.
  • Captures H1N1, H3N2, EV71 viruses and 99.95% of pollutants as small as 0.1 microns
  • Fully sealed to HEPA H13 standard filtration
  • Auto senses and reports pollution in real time on Dyson Link App, enabled with voice control.
  • Whole-room purification for larger spaces
White - Selected colour Black
HK$5,780.00

Dyson Purifier Cool

  • Join Trade-in Programme for a $400 coupon code. Click here for details.
  • Captures H1N1, H3N2, EV71 viruses and 99.95% of pollutants as small as 0.1 microns.
  • Fully sealed to HEPA H13 standard filtration.
  • Auto senses and reports pollution in real time on Dyson Link App, enabled with voice control.
  • Whole-room purification for larger spaces.
Silver - Selected colour Black/Nickel
Was HK$4,780.00 HK$4,280.00 Save HK$500.00

Dyson Pure Cool™

  • Removes 99.95% of allergens and pollutants from the air¹.
  • Projects and circulates purified air.
  • Does not connect to the Dyson Link app.
HK$3,480.00

Frequently asked questions

Indoor air pollution contains a mix of pollutants, including particulate matter (PM) and volatile organic compounds (VOCs).

Many indoor activities and household products release invisible pollutants. As our homes become increasingly well-sealed, it may seem like we're shutting pollution out – but in truth, we may be shutting it in.

Four indoor air pollutants which may be causing poor air quality in your home are:

Mould. Moulds are fungi that reproduce by making and releasing spores. It's usually found where there is excess moisture.
Volatile organic compounds. VOCs can be released from building materials, personal care and cleaning products.
Particulate matter. These can include dust, smoke and exhaust fumes. Particles vary from PM0.1 - PM10 in size.
Allergens. Common allergens include pollen and pet dander. Biological pollutants from pets include multiple proteins in a pet’s fur, hair, saliva, urine or dander.

Dyson's sealed HEPA filters capture 99.95% of microscopic allergens and pollutants as small as 0.1 microns (PM0.1).*

Here are a few actions you can take to improve the air quality in your home:

Invest in an air purifier. Your best solution for improving your indoor air quality is an air purifier. Be sure to choose one which automatically senses, is fully sealed, and has long-range air projection.
Get rid of dust. House dust can be a combination of dust mites, pet dander and pollen. Keeping on top of cleaning and vacuuming can help overall air quality.
Source control. Reduce pollution sources in your home (like burning scented candles).

Unlike our competitors, every Dyson air purifier is fully sealed to HEPA H13 standard. This ensures we capture 99.95% of ultrafine particles4 and prevents pollutants from leaking back into the air you breathe.

Yes. Dyson air purifiers capture viruses, including the SARS-CoV-2/COVID-19 virus.5

VOCs are 'Volatile Organic Compounds', meaning they are compounds containing carbon and are generally a gas at room temperature. Indoor VOCs can come from a range of activities, such as spraying perfumes or hair sprays, painting or cleaning.

When you see VOC on your machine's monitor or in your MyDyson app, you're experiencing a rise in VOCs, and your machine is working hard to remove the pollutant from the air, and project cleaned air into your home.

PM2.5 is particulate matter with a size of 2.5 microns or less, for example dust, ash and smoke particles. These can be released from a range of household activities such as burning candles or cooking.

When you see PM2.5 on your machine's monitor or in your MyDyson™ app, you're experiencing a rise in PM2.5, and your machine is working hard to remove the pollutant from the air, and project cleaned air into your home.

MyDyson logo

Get more from your Dyson machine with the MyDyson™ app

Connect and control remotely, and receive personalised reports on your home's air quality in real time, directly to your smartphone.

Three smartphone screens with different functions of the MyDyson app, including air quality reporting.

Care, from the people who made it.

Replacement filter

We recommend replacing the HEPA+Carbon filter every 12 months.5 The machine will alert you when it’s time to change filters. A filter life reading can be found on the LCD screen.

¹In Auto mode.
²Particle 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%. Gas capture rates vary.
³In maximum setting. Tested for air projection (DTM801) and purification coverage in a 81m³ room (TM-003771).
⁴Dyson purifiers were challenged with airborne influenza A (H1N1 virus) and MS2 bacteriophage at an independent lab, using a 30m³ 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.