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

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.

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

Still unsure about which air purifier to buy?

Book a free video demo to experience Dyson air purifiers from the comfort of your home.

Choose your model

Dyson Pure Hot + Cool™

Flat 10% instant cashback
Rating:
4.8% of 5
  • Flat ₹5,590 off with HDFC Bank card
  • The only air purifier and heater in one.
  • Vacuum-sealed filters capture gases, pollutants and viruses.
  • Senses and displays - PM2.5, PM10, VOCs, NO2 - in real-time.
  • Zero cost 18-month EMI: Up to ₹7,000 interest savings.
₹55,900.00
MRP ₹59,900.00
(inclusive of all taxes)

Dyson Pure Hot + Cool™

Flat 10% instant cashback
Rating:
4.8% of 5
  • Flat ₹5,590 off with HDFC Bank card
  • The only air purifier and heater in one.
  • Vacuum-sealed filters capture gases, pollutants and viruses.
  • Senses and displays - PM2.5, PM10, VOCs, NO2 - in real-time.
  • Zero cost 18-month EMI: Up to ₹7,000 interest savings.
₹55,900.00
MRP ₹59,990.00
(inclusive of all taxes)

Dyson Pure Cool™ Advanced Technology

Flat 10% instant cashback
Rating:
4.85% of 5
  • Flat ₹4,590 off with HDFC Bank card
  • The only air purifier with 350° oscillation and Air Multiplierᵀᴹ technology.
  • Vacuum-sealed filters capture gases, pollutants and viruses.
  • Senses and displays - PM2.5, PM10, VOCs, NO2 - in real-time.
  • No cost EMI starts at ₹3,825
₹45,900.00

Dyson Pure Cool™ Advanced Technology

Flat ₹6,000 off
Rating:
4.85% of 5
  • Special festive price. Limited period only.
  • The only air purifier with 350° oscillation and Air Multiplierᵀᴹ technology.
  • Vacuum-sealed filters capture gases, pollutants and viruses.
  • Senses and displays - PM2.5, PM10, VOCs, NO2 - in real-time.
  • No cost EMI starts at ₹3,325
₹39,900.00
MRP ₹45,900.00
(inclusive of all taxes)

Dyson Pure Cool™ Advanced Technology

Flat 10% instant cashback
Rating:
4.85% of 5
  • Flat ₹4,590 off with HDFC Bank card
  • The only air purifier with 350° oscillation and Air Multiplierᵀᴹ technology.
  • Vacuum-sealed filters capture gases, pollutants and viruses.
  • Senses and displays - PM2.5, PM10, VOCs, NO2 - in real-time.
  • No cost EMI starts at ₹3,325
₹45,900.00
MRP ₹48,900.00
(inclusive of all taxes)

Dyson Pure Cool™ Advanced Technology

Flat 10% instant cashback
Rating:
4.8% of 5
  • Flat ₹3,990 off with HDFC Bank card
  • The only air purifier with 350° oscillation and Air Multiplierᵀᴹ technology.
  • Vacuum-sealed filters capture gases, pollutants and viruses.
  • Senses and displays - PM2.5, PM10, VOCs, NO2 - in real-time.
  • No cost EMI starts at ₹3,325
₹39,900.00
MRP ₹39,900.00
(inclusive of all taxes)

Dyson Pure Cool™ Advanced Technology

Flat 10% instant cashback
Rating:
4.8% of 5
  • Flat ₹3,990 off with HDFC Bank card
  • The only air purifier with 350° oscillation and Air Multiplierᵀᴹ technology.
  • Vacuum-sealed filters capture gases, pollutants and viruses.
  • Senses and displays - PM2.5, PM10, VOCs, NO2 - in real-time.
  • No cost EMI starts at ₹3,325
₹39,900.00
MRP ₹39,900.00
(inclusive of all taxes)

Dyson Pure Cool Link™

Flat ₹14,000 off
Rating:
4.8% of 5
  • Special festive price. Limited period only.
  • Air purifier for larger spaces.
  • Removes gases, pollutants and allergens.
  • Compatible with Dyson Link app.
  • No cost EMI starts at ₹2,492
₹29,900.00
MRP ₹43,900.00
(inclusive of all taxes)

Dyson Pure Humidify+Cool™

Flat 10% instant cashback
  • Flat ₹5,590 off with HDFC Bank card
  • Senses and captures pollutants.
  • Removes 99.9% of bacteria in the water1
  • Projects purified, humidified air.
  • Cools you when needed.
  • No cost EMI starts at ₹4,659
₹55,900.00
MRP ₹59,900.00
(inclusive of all taxes)

Dyson Pure Hot+Cool Cryptomic™

Flat 10% instant cashback
  • Flat ₹6,190 off with HDFC Bank card
  • The only air purifier and heater in one.
  • Destroys formaldehyde, continuously.¹
  • Vacuum-sealed filters capture gases, pollutants and viruses.
  • Senses and displays - PM2.5, PM10, VOCs, NO2 - in real-time.
  • Zero cost 18-month EMI: Up to ₹7,000 interest savings.
₹61,900.00
MRP ₹65,900.00
(inclusive of all taxes)

Dyson Pure Cool Me™

Flat 10% instant cashback
Rating:
5% of 5
  • New Dyson Core Flow™ technology cools you with purified air
  • Focused, personal airflow
  • Captures allergens, pollutants & gases
  • No cost EMI starts at ₹2,159
₹25,900.00
MRP ₹27,900.00
(inclusive of all taxes)

Dyson Pure Cool Me™

Flat 10% instant cashback
Rating:
5% of 5
  • New Dyson Core Flow™ technology cools you with purified air
  • Focused, personal airflow
  • Captures allergens, pollutants & gases
  • No cost EMI starts at ₹2,159
₹25,900.00
MRP ₹27,900.00
(inclusive of all taxes)
1. Tested to EN1822 - airborne particles as small as 0.1 microns
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