Clean Air Blog • Page 1

Independent Tests

Beijing-based Dr. Saint Cyr’s tests of air purifiers were one of my original inspirations for the whole DIY project, so I was happy to see that the DIY recently became a part of those tests:     These are the first independent tests of the DIY, and the results parallel mine. You could also include […]

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Q&A

joshuaw81 提问: Hi Thomas, just started one of your cannon kits earlier today and it’s already turning gray. Already a fan of your work! Two quick questions for you: 1- I received a foam/fiber square that is white on one side and light green on the other. I’m assuming this is packaging, and not part […]

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The Really Small Stuff

An open-data DIY air purifier test found that even simple, homemade purifiers can reduce particulate, but can they capture the smallest particles? This question is important because it’s the smallest particles that can penetrate deep into our lungs and even enter our bloodstream. To test how effective the DIY purifier is, I’ve been posting lots […]

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PM2.5 Particle Size Virus