The Dyson indoor pollution guide
Check which pollutants could be hiding where you live by exploring our indoor pollution guide.
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Keep your whole room warm and your air clean this winter
Roaring fires and flickering candles can release inhalable pollutants into your home in winter.
Dyson air purifiers automatically diagnose your air quality – sensing and capturing airborne particles¹, and displaying real-time reports on the LCD screen or your MyDyson™ App².
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Common pollutants found in the home
We're spending more time indoors, in increasingly well-insulated homes and workplaces. Over time, these common indoor air pollutants can build up.
Common pollutants found in the home
We're spending more time indoors, in increasingly well-insulated homes and workplaces. Over time, these common indoor air pollutants can build up.
Airborne mould spores
Mould isn’t just unsightly – it’s also a potentially harmful allergen. Airborne mould spores from outdoors can enter the home on people, pets and objects. Flourishing in damp places around the home, such as window frames.
Airborne mould spores
Mould isn’t just unsightly – it’s also a potentially harmful allergen. Airborne mould spores from outdoors can enter the home on people, pets and objects. Flourishing in damp places around the home, such as window frames.
Pollutants from burning candles and fireplaces
In winter, fires and candles can make a home feel cosy. But they also release pollutants into the air that you breathe, such as ultrafine particles from burning wood and VOCs including benzene from candles.
Pollutants from burning candles and fireplaces
In winter, fires and candles can make a home feel cosy. But they also release pollutants into the air that you breathe, such as ultrafine particles from burning wood and VOCs including benzene from candles.
Bacteria and viruses
When people are spending more time together indoors, bacteria and viruses can spread easily. Dyson purifier heaters are engineered to capture 99.9% of viruses³, providing you with cleaner air.
Bacteria and viruses
When people are spending more time together indoors, bacteria and viruses can spread easily. Dyson purifier heaters are engineered to capture 99.9% of viruses³, providing you with cleaner air.
Pollutants from burning candles
In winter, burning candles can make a home feel cosy. But they also release pollutants into the air that you breathe, including VOCs such as benzene, which can be harmful when inhaled.
Pollutants from burning candles
In winter, burning candles can make a home feel cosy. But they also release pollutants into the air that you breathe, including VOCs such as benzene, which can be harmful when inhaled.
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.
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Please see our Accessibility Statement for more information.Automatic sensing
Reacts automatically to remove pollutants, only using energy when needed.¹
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Please see our Accessibility Statement for more information.Fully-sealed machine
Fully sealed to HEPA H13 standard. So the pollution captured inside stays inside.²
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Please see our Accessibility Statement for more information.Long-range air projection
Dyson Air Multiplier™ technology projects purified air into every corner of the room.³
Tested for real homes
Standard Clean Air Delivery Rate (CADR) tests in small chambers with ceiling fans don't represent real living conditions.
So our engineers spent years developing a new testing methodology, called Point Loading Auto Response (POLAR), to measure real-world performance more accurately.
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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 Purifier Hot+Cool™ HP09 Formaldehyde Purifying fan heater (White/Gold)
1287
Dyson Purifier Hot+Cool™ HP09 Formaldehyde Purifying fan heater (White/Gold)
5
Star
847
4
Star
197
3
Star
79
2
Star
58
1
Star
106
Purifies and heats the whole room evenly. Cools you in summer.
Advanced Dyson purification. 3-stage HEPA H13 filtration captures allergens, bacteria and odours. Destroys formaldehyde.
Live air quality reports via the MyDyson™ app. Voice, app and remote control.
2 accessories included
See all Hide-
360° Glass HEPA and Activated Carbon Filter
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Remote control
With all models
Dyson Purifier Cool PC1 Purifying fan (White)
182
Dyson Purifier Cool PC1 Purifying fan (White)
5
Star
116
4
Star
31
3
Star
13
2
Star
12
1
Star
10
Powerfully cools you with purified air
Captures gases and 99.95% of pollutants, automatically. For a healthier home.
Connect to the MyDyson™ app.
What's included
See all Hide-
Remote Control
Curved and magnetised to store neatly on the machine.
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360° Glass HEPA and Activated Carbon Filter
Dyson Purifier Humidify+Cool™ PH04 Formaldehyde Purifying humidifying fan (White/Gold)
596
Dyson Purifier Humidify+Cool™ PH04 Formaldehyde Purifying humidifying fan (White/Gold)
5
Star
332
4
Star
77
3
Star
64
2
Star
37
1
Star
86
Purifies the whole room. Humidifies hygienically with UV light. Also cools you.
Advanced Dyson purification. 3-stage HEPA H13 filtration captures allergens, bacteria and odours. Destroys formaldehyde.
Live air quality reports via the MyDyson™ app. Voice, app and remote control.
Remote Control Curved and magnetised to store neatly on the machine.
See all Hide-
360° Glass HEPA and Activated Carbon Filter
-
Remote control
-
Power supply
Power supply for your Dyson purifier humidifier.
Dyson Purifier Big+Quiet Formaldehyde BP03 Purifying fan (Nickel/Blue)
68
Dyson Purifier Big+Quiet Formaldehyde BP03 Purifying fan (Nickel/Blue)
5
Star
47
4
Star
11
3
Star
5
2
Star
2
1
Star
3
Our quietest, most powerful purifier. For large spaces up to 100m². Also cools you.
Dyson's most advanced purification. 3-stage HEPA H13 filtration captures allergens, bacteria and odours. Destroys formaldehyde.
Live air quality reports via the MyDyson™ app. Voice, app and remote control.
What's included
See all Hide-
Carbon filter
-
Remote control
-
HEPA H13 grade filter
Dyson Purifier Big + Quiet Formaldehyde BP04 Purifying fan (Prussian Blue/Gold)
68
Dyson Purifier Big + Quiet Formaldehyde BP04 Purifying fan (Prussian Blue/Gold)
5
Star
47
4
Star
11
3
Star
5
2
Star
2
1
Star
3
Projects air over 10 metres to purify a large space.1 Quietly.
Detects and destroys formaldehyde, permanently.5
Exclusive K-Carbon filter - captures 3x more NO24. Exclusive CO2 sensor - notifies you when CO2 levels exceed recommended volumes.9
HEPA H13 grade filter 21 metres of borosilicate microfibres, pleated over 459 times, captures 99.95% of particles as small as 0.1 microns.²
See all Hide-
HEPA H13 grade filter
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Remote Control
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K-carbon Filter
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Extended Christmas returns
Any machine purchases made online on dyson.ie between 24 October and 24 December 2025 can be returned up until 31 January 2026. This extended returns policy does not apply to individual accessories and spare parts sold separately and not purchased together with a machine, for which our standard 30-day returns policy applies. If you purchased any additional accessories bespoke to your model together with your machine within the same order, you may also return these together with the machine and get a refund. If you are returning a machine purchase that included bundled or complimentary accessories, these must also be returned at the same time to qualify for the refund.
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For purchases made from 25 December 2025 onwards, our normal returns policy will apply.
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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. Or 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).
Dyson engineers are perfectionists. Channelling our relentless dissatisfaction, we re-engineered the entire range to ensure every purifier is fully sealed to HEPA H13 standard.
This ensures we capture 99.95% of ultrafine particles and prevent pollutants from leaking back into the air you breathe.
Yes. Dyson air purifiers capture viruses, including the SARS-CoV-2/COVID-19 virus.*
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.
Dyson goes backpacking to investigate air quality
One global pollution problem. Many globetrotting data gatherers. From journalists to fitness experts, individuals far and wide are helping our research by wearing our prototype air quality backpack to monitor pollution levels.
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