Dyson air quality backpack research

Dyson Air Quality Backpack

Re-working existing sensing technology used in Dyson air purifiers, Dyson’s air quality backpack is a portable air sensing device which collects air pollution data on the move. With on-board sensors, a battery pack and GPS, Dyson hopes to use this sophisticated technology to offer insight into personal exposure to air pollution and how to avoid it.

One sensor in the backpack measures temperature and humidity. The other two detect pollutants including NO₂, VOCs, PM2.5 and PM10. Unique algorithms process the data, which is combined with information gathered from the on-board GPS to create reports on air quality.

The backpack with an image showing the technology inside it

"Our engineers have developed intelligent sensors using knowledge derived from years of experience and research in air cleaning technology. Using our unique algorithm to process detailed reports of air pollution exposure, this innovative technology allows us to monitor air quality indoors, outdoors and on the move. What’s more, it all fits within a backpack."

Alex Knox Vice President of Environmental Care at Dyson

Investigation of daily air pollution exposure for Delhi NCR-based mother

Dyson engineers analysed the findings by pairing the air sensor and GPS data from the backpack with Karuna’s diary entries, where she documented her activities and observations in the period wearing the air quality backpack. This allowed them to understand what may have caused the pollution and how Karuna might be able to lower her exposure in the future.

Mon with her daughter walking on street in pollution

Data showed average personal exposure to PM2.5 indoors to be over four times worse during November

The Phase 2 pollution data collected in November indicated a significant increase in PM2.5 levels, with average levels rising by 459%*. These levels remained high both indoors and outdoors, irrespective of the activity taking place.

Karuna’s Phase 1 data highlights how air quality can be impacted by daily activities. Actions like frying food in the kitchen increase PM2.5 levels by five times, while visiting an outdoor market caused NO₂ levels to rise to 2,500ppb, which registers as very poor on the Dyson AQI scale. Chauhan’s exposure to PM2.5 and NO₂ pollution peaked while she was driving on the Expressway.

Air quality levels

Average overall air quality recorded over two days using Dyson’s prototype air quality backpack
Average overall air quality recorded over two days using Dyson’s prototype air quality backpack

Yoga in the park

Pollution levels remained high, highlighting that green spaces within cities can still be impacted by city pollution due to their proximity to pollution sources like vehicles and construction.
Cooking at home

Actions like frying food in the kitchen increased PM2.5 levels by five times. The combustion process while cooking releases particulates into the air, likely contributing to this increase.
Getting ready

Within the home, exposure to VOCs is increased due to usage of common household items like deodorants, perfumes perfumes, aerosols and cleaning sprays.
Visiting Khan market

Visiting an outdoor market caused NO₂ levels to rise to 2,500ppb, which registers as “very poor” on the Dyson AQI scale.

Download the full report

Karuna’s data findings showed an increase in pollution levels during daily routine activities such as cooking, cleaning, venturing out in green spaces and traveling by car. Read the full report here.

Common pollutants found in cities

Dyson's newly designed air quality detection backpack helps detect common indoor and outdoor pollutants.

PM2.5

Fine particles smaller than 2.5 microns, including smoke, bacteria and allergens.
Volatile Organic Compound (VOC)

There are many sources of this type of gas, including formaldehyde, candles, detergent products and air fragrances.
Nitrogen Dioxide (NO₂)

Potentially harmful gases released by combustion. Sources include cigarette smoke, candles and gas stoves.

Dyson air purifiers help improve indoor air quality and create a healthier home

Our air purifiers have intelligent sensing function that captures pollutants through a fully-sealed filtering system, capturing 99.95% of potentially harmful pollutants as small as PM0.1, such as bacteria and viruses¹. With patented Air Multiplier™ technology, purified air is then projected to all corners of the room.

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Dyson Purifier Cool™ Formaldehyde

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Captures virus, dust, allergens and 99.95% of pollutants as small as PM0.1.¹
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360° Glass HEPA and Activated Carbon Filter (free)

Vacuum Sealed 360° Glass HEPA Filter & Tris-coated Activated Carbon Filter captures up to 99.95% of microscopic pollutants as small as 0.1 microns
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Dyson Purifier Hot+Cool™

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Air purifier. Heater. Fan. All in one.
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Vacuum sealed HEPA filter captures pollutants, bacteria and viruses.¹
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360° Glass HEPA and Activated Carbon Filter

Vacuum Sealed 360° Glass HEPA Filter & Tris-coated Activated Carbon Filter captures up to 99.95% of microscopic pollutants as small as 0.1 microns
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Curved and magnetized to store neatly on top of the machine.

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Dyson Purifier Cool™

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The only air purifier with 350° oscillation and Air Multiplierᵀᴹ technology
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360° Glass HEPA and Activated Carbon Filter

Vacuum Sealed 360° Glass HEPA Filter & Tris-coated Activated Carbon Filter captures up to 99.95% of microscopic pollutants as small as 0.1 microns
Remote Control

Curved and magnetized to store neatly on top of the machine.

~~Was ₹56,900.00~~ ₹33,900.00 Save ₹23,000.00

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Dyson Pure Cool Link™

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Air purifier for larger spaces
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Remote control

Curved and magnetic, can be easily stowed on the device
Filter

Vacuum Sealed 360° Glass HEPA Filter & Tris-coated Activated Carbon Filter captures up to 99.95% of microscopic pollutants as small as 0.1 microns

~~Was ₹43,900.00~~ ₹27,900.00 Save ₹16,000.00

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^{*Compared to data collected by the air quality backpack in Phase 1 in October.

¹Independently tested in accordance with EN1822 and ISO29463 by SGS Laboratories Inc., USA, on 7 May 2021.}

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Dyson air sensing technology reveals the impact of Delhi NCR smog on indoor pollution

Dyson Air Quality Backpack

Investigation of daily air pollution exposure for Delhi NCR-based mother

Data showed average personal exposure to PM2.5 indoors to be over four times worse during November

Yoga in the park

Cooking at home

Getting ready

Visiting Khan market