Latest technology
Projects air over 32 feet to purify large spaces.¹ Quietly.
Our most advanced purifier removes 99.97% of microscopic particles as small as 0.3 microns⁶, such as allergens – for a healthier home environment.
Captures three times more NO₂, a common urban pollutant.²
Also destroys formaldehyde⁷ – emitted by some home furnishings.
And cools you, when required.
Only at Dyson: K-Carbon filter and CO₂ sensor on select models
Our most powerful and advanced air purifier
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Cools you with purified air
Projects a powerful stream of purified airflow to keep you cool, whatever you’re doing. Or in Breeze mode creates the refreshing feeling of being outdoors.
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Acoustically engineered for light sleepers
In Night mode, the dimmed display and 88% quieter fan³ lets you breathe cleaner air and sleep peacefully.
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Dyson’s most advanced odour remover
As well as capturing invisible, odourless pollutants and allergens including pollen, it’s also our most advanced purifier for removing unpleasant household smells.
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Choose your model
Dyson Big+Quiet Formaldehyde rated the Best New Air Purifier by Canadians in a 2024 BrandSpark® survey.*
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The problem: Indoor air pollution
Air pollution isn’t just outside – it’s inside too
While traffic emissions can seep into our homes, especially in urban areas, indoor activities can raise pollution levels too. Cleaning, decorating, cooking and even getting ready for work can produce airborne particles and gases.
The problem: Indoor air pollution
Air pollution isn’t just outside – it’s inside too
While traffic emissions can seep into our homes, especially in urban areas, indoor activities can raise pollution levels too. Cleaning, decorating, cooking and even getting ready for work can produce airborne particles and gases.
The problem: Indoor air pollution
Pollen, allergens and pet dander
Pollen season can make life difficult. The Dyson Purifier Big+Quiet reduces your exposure to pollen, so you and your family can breathe cleaner air.
The problem: Indoor air pollution
Pollen, allergens and pet dander
Pollen season can make life difficult. The Dyson Purifier Big+Quiet reduces your exposure to pollen, so you and your family can breathe cleaner air.
The problem: Indoor air pollution
VOCs from aerosols and cleaning products
Some household products like disinfectants and aerosols can release potentially harmful gases into the air. These are known as volatile organic compounds (VOCs).
The problem: Indoor air pollution
VOCs from aerosols and cleaning products
Some household products like disinfectants and aerosols can release potentially harmful gases into the air. These are known as volatile organic compounds (VOCs).
The problem: Indoor air pollution
Formaldehyde fumes from paints and glues
Formaldehyde is a potentially harmful gas released by some furniture, paint and fabrics which can often be present in small amounts. But concentrations can increase during interior decoration projects.
The problem: Indoor air pollution
Formaldehyde fumes from paints and glues
Formaldehyde is a potentially harmful gas released by some furniture, paint and fabrics which can often be present in small amounts. But concentrations can increase during interior decoration projects.
The problem: Indoor air pollution
Cooking pollutants and odours
Cooking doesn’t just leave lingering odours, it can also release potentially harmful pollutants like NO₂ when any fuel is burned. Which can build up in your home.
The problem: Indoor air pollution
Cooking pollutants and odours
Cooking doesn’t just leave lingering odours, it can also release potentially harmful pollutants like NO₂ when any fuel is burned. Which can build up in your home.
The problem: Indoor air pollution
More time indoors can mean more exposure to pollutants
During the colder months, we spend more time indoors, use more heating, and ventilate less often, which can make the air we breathe at home more polluted.
The problem: Indoor air pollution
More time indoors can mean more exposure to pollutants
During the colder months, we spend more time indoors, use more heating, and ventilate less often, which can make the air we breathe at home more polluted.
The problem: Indoor air pollution
Pet odours, allergens and dander
Pets can bring unwanted odours and allergens into the home. Dogs and cats shed dander, releasing microscopic skin, saliva and urine allergens into the air.
The problem: Indoor air pollution
Pet odours, allergens and dander
Pets can bring unwanted odours and allergens into the home. Dogs and cats shed dander, releasing microscopic skin, saliva and urine allergens into the air.
Sensing. Filtration. Projection.
Three essentials to look for in an air purifier
Real-time air quality diagnosis
In Auto mode, our integrated sensors detect pollutants from around the room and analyse air quality in real time, cross-checking the data every second, then automatically trigger purification, if required.
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Advanced filtration technology
Our most advanced filtration system
Three phases of purification sit within our fully sealed machine to trap and seal in pollutants, so what goes inside stays inside.⁴
Advanced filtration technology
Our most advanced filtration system
Three phases of purification sit within our fully sealed machine to trap and seal in pollutants, so what goes inside stays inside.⁴
Adanced filtration technology
HEPA H13-grade filter
Our re-engineered HEPA H13-grade filter is 3.8 times larger than its predecessor and now lasts five years. Captures 99.97% of microscopic particles as small as 0.3 microns.⁶
Adanced filtration technology
HEPA H13-grade filter
Our re-engineered HEPA H13-grade filter is 3.8 times larger than its predecessor and now lasts five years. Captures 99.97% of microscopic particles as small as 0.3 microns.⁶
Superior filtration technology
K-Carbon filter
Impregnated with potassium carbonate, it adsorbs three times more NO₂.² Removing a common and potentially harmful household pollutant. And lasts two years.
Superior filtration technology
K-Carbon filter
Impregnated with potassium carbonate, it adsorbs three times more NO₂.² Removing a common and potentially harmful household pollutant. And lasts two years.
Advanced filtration technology
Selective Catalytic Oxidisation filter
Continuously traps and destroys formaldehyde molecules permanently.⁷ Never needs replacing.
Advanced filtration technology
Selective Catalytic Oxidisation filter
Continuously traps and destroys formaldehyde molecules permanently.⁷ Never needs replacing.
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Formaldehyde: the invisible indoor pollutant
Formaldehyde is often associated with the familiar smell of fresh paint, or the unboxing of new furniture. It's a colourless, flammable and potentially harmful gas used in some building materials and household products. Sources can include fabrics found in flooring and furniture, glues, paints, varnishes, air fresheners, and household cleaners.
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How to maintain cleaner air during home renovations
Moving and home makeovers involve new furniture and paint, which could add to the levels of formaldehyde in your home. Here's how to maintain cleaner indoor air when moving, decorating or renovating.
Frequently asked questions
While our current generation of purifiers circulate clean air around the whole room, the Dyson Purifier Big+Quiet projects air over 32 feet, creating the circulation power to purify large spaces.¹ Featuring our most advanced filtration system yet, the Big+Quiet captures 99.97% of ultrafine pollutants as small as 0.3 microns⁶, gases⁵ and destroys formaldehyde.⁷ It’s also acoustically engineered to operate quietly – even at its highest power setting.
We've tested the Dyson Purifier Big+Quiet extensively – to ensure the sensors, filtration system and motor work together to purify large living spaces. It has the projection power to purify spaces up to 100m².
We’ve re-engineered the Big+Quiet to deliver three key features to purify a large spaces.¹ Long-range projection creates the circulation power to draw even distant pollutants into the purifier. Our integrated sensor system detects and reports pollutants from around the room. Finally, three phases of purification sit within the machine, fully sealed to HEPA H13 grade. Capturing gases⁵, odours, ultrafine particles⁶ and destroying formaldehyde.⁷ Purified air is then projected back into the room and the cycle repeats.
Formaldehyde is a colourless and potentially harmful gas found in some household furnishings and products. Sources of formaldehyde include some woods, glues, paints, varnishes, air fresheners, mattresses, household cleaners, and some fabrics found in household flooring, carpets and furniture. Formaldehyde can continue to be emitted for years, which means the gas can build up in your home. The Dyson Purifier Big+Quiet Formaldehyde range features a lifetime Selective Catalytic Oxidation (SCO) filter which traps formaldehyde in tunnels, breaking it down into water and CO₂, and never needs to be replaced.
Dyson purifiers perform at an optimal level when used in Auto mode. This mode means the purifier will constantly monitor your air quality, automatically sensing and capturing pollutants. It will adjust airflow speed, and only purify or use energy when it’s necessary. The Dyson Purifier Big+Quiet range offers enhanced energy efficiency, providing nearly double the clean air delivery rate per watt, compared to our current generation of purifiers.
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Allergens
An allergen is a substance that can cause an allergic reaction by triggering the body’s immune system. Common indoor allergens include dust mite droppings, pet dander, mold, and pollen.
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Bacteria
Microscopic, single-celled organisms that exist in their millions, in every environment. Not all bacteria are harmful, but some can have adverse effects, such as E. coli.
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Benzene
Benzene is colourless, flammable liquid produced by both natural and man-made processes. It’s a natural part of crude oil, gasoline, and cigarette smoke. Indoors, it comes from products such as glues, paints, furniture wax, and detergents.
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Carbon dioxide (CO₂)
A colourless greenhouse gas, which comes from the extraction and burning of fossil fuels. Increased CO₂ levels can impact cognitive function.
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Formaldehyde
This colourless, flammable gas is used in some building materials and household products. Sources can include some fabrics found in flooring and furniture, glues, paints, varnishes, air fresheners, and household cleaners.
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H1N1 virus
This subtype of Influenza A virus, also known as swine flu, caused a global flu outbreak. H1N1 produces respiratory infectious diseases in humans and pigs. Symptoms can be similar to seasonal flu.
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HEPA 13
HEPA (High Efficiency Particulate Air) is an air filter efficiency standard and a measure of a filter’s performance. To achieve this standard, filters must meet a minimum of 99.97% particle removal at the most penetrating particle size.
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Humidification
A process of increasing air moisture content through the addition of water vapour or steam. Humidifiers can add moisture to the air in dry conditions, creating a more comfortable indoor environment when needed.
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Microns
Airborne particles are usually described in microns. One micron is equal to one-millionth of a metre. The human eye can see debris and dust that are approximately 25 microns in size.
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Nitrogen dioxide (NO₂)
Nitrogen dioxide is a liquid below 21.2 °C and a gas at higher temperatures. It is toxic to humans in both states. Gas stoves and space heaters are the most common indoor sources of NO₂ emissions. Other sources include improperly vented furnaces and water heaters.
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Pet dander
Pet dander is made up of tiny particles of skin, saliva and urine, shed by animals with fur or feathers. Pet dander lingers in the air before settling on surfaces such as furniture, bedding, and fabrics. Exposure to these airborne particles can trigger allergies.
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Particulate matter (PM)
Particulate matter contains microscopic solids or liquid droplets, measured in microns. Indoor PM can be generated through many day-to-day activities such as cooking, cleaning, and the burning of candles and fires.
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Purification
The process of making something free of any contaminants or physical impurities. Air purification is designed to filter the air in your home – removing pollutants such as dust, allergens and viruses.
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Volatile organic compounds (VOCs)
Volatile organic compounds are potentially harmful gases found in many household products. Common sources include paints, varnishes, air fresheners, cosmetics, and cleaning products.
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Pollen
Pollen is a powdery substance released from seed plants as part of their reproduction process. It typically appears from trees in the spring, grasses in the summer, and weeds in the autumn. Pollen grains are among the most common allergens.
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House dust mites
Dust mites are tiny insects that commonly live in household dust. They are one of the biggest causes of allergies. Each gram of house dust contains approximately 1000 dust mites.
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Aspergillus mold
A common name for a visible group of fungi, mould thrives wherever there is dampness – sending out millions of spores into the air. Exposure to mould occurs via inhalation, skin contact, or ingestion.
¹ Purifying a large room up to 100m² proven with computational fluid dynamics (CFD) modeling with purifier placed in a corner of the room, running at maximum flow and horizontal projection. Projection distance measured from internal flow reach testing. Actual performance in real life conditions may vary.
² Compared to absorption by the standard carbon filter in Dyson Purifier Big+Quiet Formaldehyde (BP03).
³ Vs. highest fan speed.
⁴ Particle challenge by DEHS oil specified in EN1822 within a chamber specified in ASTM F3150. Tested in Max mode for whole-machine efficiency above 99.95%.
⁵ Tested to JEM 1467 (acetic acid, acetaldehyde, ammonia), GB/T18801 (formaldehyde, benzene) and DTM-003282 (NO2). Gas capture rates vary.
⁶ Tested to IEST RP-CC001.
⁷ Third party full-machine testing based on GB/T 18801-2022 formaldehyde cumulative clean mass testing with continuous injection until plateau of formaldehyde CADR is achieved. Results may vary in practice.
⁸ App functionality may vary per market. Requires Wi-Fi and app-enabled device. Standard data and messaging rates may apply. Requires iOS version 10 or above, or Android version 5 or above. Your mobile device must have Bluetooth® wireless technology 4.0 support. The Bluetooth® word, mark and logos are registered trade marks owned by the Bluetooth SIG, Inc. and any use of such marks by Dyson is under license. Apple, the Apple logo and Siri are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of the Apple Inc., registered in the U.S. and other countries. Google Play, the Google Play logo, Google Assistant are trademarks of Google Inc.
*According to results of the 2024 BrandSpark® Canadian Shopper Study, a national survey of over 15,000 consumers. Winners are determined based on consumer appeal among category shoppers, and repurchase intent and product superiority ratings among real product purchasers. Winners are determined among selected products by the highest numerical scores in each category, and not necessarily on statistical significance.
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