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DIY air filter for polluted cities
- olva22 11y agoI built a very similar thing in the US. I don't know where these fans or hepa filters are sold, but I buy a standard 20" boxfan at walmart ($16ish USD), and a 3M Filtrete AC filter in 20x20x1" size (also ~$15USD). These come in different ratings, so I buy the "allergen reducer" rating or higher. Duct tape to the back of the box fan, done.
- olva22 11y agoFan like this: http://www.lowes.com/pd_625625-1225-HBF2010A-WM_0__ http://www.lowes.com/pd_625625-1225-HBF2010A-WM_0__ Filter like this: http://www.walmart.com/ip/Filtrete-Advanced-Allergen-Reduction-Filter-Available-in-Multiple-Sizes/42132268 http://www.walmart.com/ip/Filtrete-Advanced-Allergen-Reducti... They even have a filter embedded with carbon if you're a smoker.
- mariusz79 11y agoI would add activated carbon filter to remove even more stuff
- hgbrian 11y agoSmart air filters has a similar idea: http://smartairfilters.com/en http://smartairfilters.com/en Both projects use a Dylos particle counter, which is a great tool.