Air purifier best practices & how to DIY for 166 RMB
From Particle Counting, a formerly Beijing-based geek’s blog about air pollution and filters:
How to Make a DIY Air Purifier
Based on my research into how different filters work, I concluded that a HEPA filter is all you really need to fight particulate air pollution in China. Given the fact fancy air purifiers run for 8,000 RMB here in Beijing, and I’m only here for a year, I thought I’d try making my own…
In short: buy a HEPA filter and strap it onto a fan with its cover removed. Read the full instructions.
Other interesting articles/studies from their blog:
- This Data Explains Why You Should Never Use Your Purifier’s Auto Mode
- Does AC Bring in PM2.5? [No]
- Do Pollution Masks Really Work? [Yes]
- Plants Have No Detectable Air Purification Effect
This blog (and the DIY air purifier) gained so much traction that the team behind it started a social enterprise “that promotes DIY air filters as a low-cost solution to indoor particulate air pollution in China, India, Mongolia, Nepal and other countries.”
Via Final Boss Form.