Testing standards

Dyson engineers go further during testing. Our uniquely designed POLAR test ensure Dyson air purifiers are capable of whole-room purification.

The industry-wide CADR test

Some air purifier and humidifier manufacturers test performance with a lab test method called ‘Clean Air Delivery Rate’ (CADR). Conducted in a compact chamber measuring just 28.5m³, air quality is measured with only one sensor.

In real homes, filtration quality matters. If particles aren’t captured first time, they are released back into the home. Unlike real homes, the CADR test is conducted for 20 minutes in a small chamber, tracking just the speed of filtration, rather than the quality.

  • 28.5m³

    Small test chamber (with fans on the ceiling and walls to help circulate the air)
  • 1 sensor

    That maps and monitors how the chamber is purified for only 20-25 minutes
  • 3 particles

    removed: dust, pollen and tobacco smoke

Dyson engineers go further

Play the video: See how Dyson engineers push testing methods

The Dyson POLAR test

Dyson air purifiers are engineered to work in real homes. That’s why we developed our POLAR test. Based on a larger room size of 81m³, nine different sensors continually collect air quality data throughout the entire. Ensuring purified air is evenly distributed to every corner.

Dyson purifier in large testing room
  • 81m³

    real living size space test chamber
  • 9 sensors

    that continually map and monitor how a room is purified
  • 5 particles

    and 11 gases removed

Ultrafine particles are suspended in the air we breathe

Filtration quality is crucial. Particles at 2.5 microns measure just 1/30th the size of a human hair. Ultrafine particles at 0.1 microns fit 1,000 times across the diameter of a human hair. Dyson purifiers capture 99.95% of particles as small as PM 0.1.¹

Image of magnified human hair and gas particles

Our rigorous test methods tell us more

  • Dyson purifier in testing situation

    Full grid test

    Measures air flow, velocity and direction from the purifier. Good circulation helps prevent dirty air from lingering in some areas of the room.

  • HEPA filter ingesting gasses

    Dyson HEPA filtration efficiency test

    Some purifiers release dirty air back into the room. We test our HEPA filters to capture 99.95% of particles as small as PM 0.1.

  • Image of harmful pollutants around the home

    Gaseous pollutants

    Potentially harmful gases can be emitted from cookers, new furniture, naked flames and cleaning products. We test that our purifiers capture these.

  • Dyson purifier in acoustic chamber

    Acoustics testing

    We invest in sound power and sound quality analysis, to develop night-mode settings that enable air purification without disturbing you.

Project purified air throughout the room

Only Dyson air purifiers use Air MultiplierTM technology with 350° oscillation to project purified air throughout a whole room.2

Image of Dyson purifier purifying a whole-room

Dyson air purifiers are certified asthma and allergy friendly™ by Allergy Standards Limited

The certification mark is only awarded to products that specifically reduce or remove allergens from the home.

Asthma and Allergy certification sticker

"Dyson has been filtering air for more than 25 years. Our engineers ensure our machines capture more potentially harmful ultrafine particles and gasses in real homes, than conventional lab testing."

James Dyson Founder and Engineer

Discover Dyson air purifiers

Heating and personal cooling3, with air purification.

Dyson purifier range

Choose your model

Dyson Purifier Cool™ Formaldehyde

Save ₹10,000 + ₹3,500 with filter
Rating:
4.95% of 5
  • Captures virus, dust, allergens and 99.95% of pollutants as small as PM0.1.1
  • Detects and destroys formaldehyde, continuously
  • Fully sealed to HEPA H13 standard filtration
  • Auto senses and displays - PM2.5, PM10, VOCs, NO2 - in real-time on Dyson Link App, enabled with voice control.
  • Whole-Room purification tested in 81m3 room.4
  • Save ₹10,000
  • Save ₹3,500 extra when bought with additional filter when you add to cart
  • Exchange benefit2 of ₹2,995
Was ₹59,900.00 ₹46,905.00 Save ₹12,995.00

Own it at ₹1,954# /month

Dyson Purifier Cool™

Limited time trade-in discount
Rating:
5% of 5
  • The only air purifier with 350° oscillation and Air Multiplierᵀᴹ technology
  • Vacuum sealed HEPA filter captures pollutants, bacteria and viruses.1
  • Auto senses and displays - PM2.5, PM10, VOCs, NO2 - in real-time on Dyson Link App, enabled with voice control.
  • Whole-Room purification tested in 81m3 room.3
  • Save ₹14,000
  • Save ₹3,500 extra when bought with additional filter when you add to cart
  • Exchange benefit2 of ₹1,669
White and silver - Selected colour Black and nickel
Was ₹56,900.00 ₹40,055.00 Save ₹16,845.00

Own it at ₹1,669# /month

Dyson Pure Cool Link™

Limited time trade-in discount
Rating:
4.8% of 5
  • Air purifier for larger spaces
  • Removes gases, pollutants and allergens
  • Auto senses and reports pollution in real time on Dyson Link App, enabled with voice control
  • Purification tested in 30m3 room.5
  • Save ₹9,000
  • Save ₹1,200 extra when bought with additional filter when you add to cart
  • Exchange benefit2 of ₹1,363
Was ₹43,900.00 ₹32,705.00 Save ₹11,195.00

Own it at ₹1,363# /month
1. Independently tested in accordance with EN1822 and ISO29463 by SGS Laboratories Inc., USA, on 7 May 2021.
2. Based on internal study conducted in July 2020. Tested to Dyson internal test method TM-003711 in a 27m2 room.
3. Fan, not an air-conditioning unit