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  • Weight

    11.9 kg

  • Sound level (Max)

    56 dBA

  • Sound level (Quiet Mode)

    38 dBA

  • Cord length

    1.8 m

  • Number of speed settings

    10

  • Total height

    830 mm

  • HEPA filter

    Glass fiber HEPA filter

Front and side view of the Dyson Purifier Big+Quiet Formaldehyde purifying fan.

  • Height

    830 mm

  • Length

    434 mm

  • Width

    415 mm

In the box

Dyson Purifier Big+Quiet Formaldehyde BP03 (Bright Nickel/Prussian Blue)

Dyson Purifier Big+Quiet Formaldehyde BP03 (Bright Nickel/Prussian Blue)

  • Curved and magnetized to store neatly on the machine.

  • Captures NO₂. Genuine Dyson Activated Carbon Filter lifespan is every 2 years or when alerted by the MyDyson™ app.

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Allergens, pollen and airborne mould spores

Allergy season can be difficult. The Dyson Purifier Big+Quiet reduces your exposure to allergens, such as pollen and airborne mould spores. For cleaner indoor air.

A model cooking on a stove, with the MyDyson graph demonstrating the spike in air pollution.

Allergens, pollen and airborne mould spores

Allergy season can be difficult. The Dyson Purifier Big+Quiet reduces your exposure to allergens, such as pollen and airborne mould spores. For cleaner indoor air.

Bacteria, viruses and microscopic particles

Bacteria and viruses can spread more easily when we spend more time together indoors. The Dyson Purifier Big+Quiet is proven to capture 99.9% of viruses.⁵

A house plant releasing pollen into the air.

Bacteria, viruses and microscopic particles

Bacteria and viruses can spread more easily when we spend more time together indoors. The Dyson Purifier Big+Quiet is proven to capture 99.9% of viruses.⁵

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.

A dog shedding fur on the carpet.

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.

Cooking odours, pollutants and nitrogen dioxide

Cooking or burning any type of fuel can release odours and potentially harmful combustion pollutants like NO₂, which can build up in your home.

Cooking odours, pollutants and nitrogen dioxide

Cooking odours, pollutants and nitrogen dioxide

Cooking or burning any type of fuel can release odours and potentially harmful combustion pollutants like NO₂, which can build up in your home.

Household dust and airborne particles

Household dust is a complex mixture of microscopic particles, including dead skin cells, dust mites, dust mite droppings, small insects, pollen, smoke, mould spores and bacteria.

A dog shedding fur on the carpet.

Household dust and airborne particles

Household dust is a complex mixture of microscopic particles, including dead skin cells, dust mites, dust mite droppings, small insects, pollen, smoke, mould spores and bacteria.

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Our most advanced suite of sensors

A suite of sensors interact with our unique algorithm, cross-checking pollution data every second and reporting live results onscreen or the MyDyson™ app.⁵

Cutaway of the Dyson Purifier Big+Quiet Formaldehyde's screen.

Our most advanced suite of sensors

A suite of sensors interact with our unique algorithm, cross-checking pollution data every second and reporting live results onscreen or the MyDyson™ app.⁵

Advanced three-stage filtration system

HEPA-H13, Activated carbon and SCO filtration captures particles and gases including formaldehyde – within a fully sealed machine. So what goes inside, stays inside.⁷

The three layers of filtration inside the Dyson Purifier Big+Quiet Formaldehyde.

Advanced three-stage filtration system

HEPA-H13, Activated carbon and SCO filtration captures particles and gases including formaldehyde – within a fully sealed machine. So what goes inside, stays inside.⁷

Activated carbon filter

Removes odours and volatile organic compounds (VOCs) like benzene, as well as gases such as NO2 – a common and potentially harmful pollutant.

Close-up of the Activated carbon filter.

Activated carbon filter

Removes odours and volatile organic compounds (VOCs) like benzene, as well as gases such as NO2 – a common and potentially harmful pollutant.

Cone aerodynamic projection

Drives high-velocity air jets over the machine’s dome which coalesce to project a focused stream of air. To purify large spaces,⁷ quietly. Or cool you when required.

Cutaway of the Dyson Purifier Big+Quiet Formaldehyde using blue lines to show airflow inside and outside the machine.

Cone aerodynamic projection

Drives high-velocity air jets over the machine’s dome which coalesce to project a focused stream of air. To purify large spaces,⁷ quietly. Or cool you when required.

Frequently asked questions

Which is the best air purifier?

The Dyson Purifier Big+Quiet Formaldehyde is our most advanced, quietest, and most powerful air purifier. As our latest top-of-the-range purifier, it uses cone aerodynamics to deliver powerful, long-range air projection – circulating purified air and driving even distant pollutants back through sealed filters. For whole-room purification – capturing 99.97% of ultrafine particles², even in large spaces.¹ You can control your air quality, wherever you are. At the touch of a button you can monitor the air quality levels in your home using the MyDyson™ app⁶ – viewing in real-time the benefits of owning an air purifier.

Are bigger purifiers better?

Not all purifiers are equal. Getting the right size purifier, with the best projection is essential to ensure it will effectively purify the air in your space. We've tested the Dyson Purifier Big+Quiet  Formaldehyde extensively – to ensure the sensors, filtration system and motor work together to purify a large living space. It has the projection power to purify spaces up to 100m². The Dyson Purifier Big+Quiet Formaldehyde also has our largest ever filtration system – and the 360° HEPA H13-grade filter doesn’t need replacing for up to 5 years.

What is the Dyson Big+Quiet Formaldehyde air purifier range designed to do?

The Dyson Purifier Big+Quiet Formaldehyde air purifier range is engineered to remove 99.97% of ultrafine particles², such as dust, allergens, odours, gases³ like benzene and nitrogen dioxide and even formaldehyde gas.⁵

How long do the filters in the Dyson Big+Quiet Formaldehyde last?

The Dyson Purifier Big+Quiet Formaldehyde has our most advanced filtration system. We recommend replacing the 360° HEPA H13-grade filter after using it for up to five years or sooner. The K-Carbon filter should be replaced every two years, or sooner if required. The Selective Catalytic Oxidisation (SCO) filter is permanent and never needs replacing. 

Where should I position the Dyson Purifier Big+Quiet Formaldehyde in my room?

The Dyson Purifier Big+Quiet Formaldehyde has been designed to work from the corner of a room, at least one metre away from the wall. For optimal performance we recommend projecting air either along a wall or across the room. You can adjust the angle of projection to suit your preference. 

How easy is the Dyson Purifier Big+Quiet Formaldehyde to move?

The Dyson Purifier Big+Quiet Formaldehyde has discreet wheels, which aren’t visible when the machine is upright. These wheels are designed for hard floors – so you can move your purifier around easily.

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