What Time of Day Is Air Pollution Lowest?

My intuition has always been that there is least air pollution at night because there are fewer cars on the road and fewer factories humming at that time of day.   Pollution Time of Day Guesses   Apparently I’m not alone: 139 voted for their guess about what time of day …

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Indoor Air vs Outdoor Air: Which is Dirtier?

In places with heavy air pollution, going outside can often be daunting. Countries likes China, India and Indonesia see outdoor air pollution levels over 10 times the World Health Organisation safe limit. But are indoor PM2.5 levels any better ? I’ve tested indoor and outdoor locations around Beijing to see …

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Particle Counting in the Atlantic

Particle Counting and the DIY workshop made it into the Atlantic. Hooray for getting the word out about how to protect your health in China without shelling out big money.     More workshops are in the planning stages. Stay tuned.

Smart Air low cost purifiers

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.

Certified B-Corp air purifier company