20 Most Polluted Cities in India (2022 Rankings)

Air pollution is one of the leading causes of death in India. So which cities in India are the most polluted? Smart Air analyzed 2021 air pollution data for dozens of Indian cities to generate the 2022 ranking of the “20 Most Polluted Cities in India”. Scroll down below for …

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Students Using QT3 Portable HEPA Air Purifier in Schools

The Smart Air team is all about open data – not only do we run independent tests, but we also run real-life tests! Recently, a UK customer shared her experience of purchasing a QT3 portable air purifier for her clinically vulnerable son to use at his school. The response was staggering – …

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Incense Sticks Elevate Dangerous PM2.5, Formaldehyde Levels

Researchers have tested the air pollution released by incense sticks, and it’s not pretty! Frankincense, myrrh, and nag champa incense are often used in these sticks. Although you may enjoy the scent, these incense sticks can be quite dangerous to your health. The burning of incense sticks releases two dangerous …

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How Much Air Pollution Does Diwali Create?

Fireworks are everywhere during Diwali. So that got me thinking: just how much air pollution does Diwali create in India? We tracked the data the published PM2.5 data for 2021 Diwali, and share the results of our own tests as well. Testing Diwali Air Pollution in Delhi The Smart Air …

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ASHRAE Recommended Air Changes Per Hour

Data shows that improving indoor ventilation can reduce the risk of virus transmission, and is recommended by the CDC. In this article, we’ll cover the ASHRAE recommended air changes per hour for offices, homes, schools, residential and hospitals, using the ASHRAE 62.1 and 62.2 guidelines. ASHRAE Recommended Air Changes Per …

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Which Way Round Should a Surgical Face Mask Go?

Surgical masks are designed to be worn in one direction only. However, it can be difficult to know which way round a medical face mask should go. Should the blue side face out, or in? Some surgical masks are white all over, which way round should these white face masks …

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Disinfect N95 mask wash alcohol viruses

The Best Way to Clean and Disinfect N95 & KN95 Masks

Covid-19 has led to a new surge in interest in how to clean and disinfect masks. Google searches for “wash N95 mask” and “wash KN95 mask” have sky-rocketed. Yet data-backed answers seem to be in short supply. The standard guidelines say to throw masks out and use new ones. I.e. …

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Smart Air is a social enterprise that creates simple, no-nonsense air purifiers and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.