DIY air filter for polluted cities

#1

Post by arnie001 » Mon, Dec 28, 2015, 5:43 PM UTC

DIY air filter for polluted cities
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Re: DIY air filter for polluted cities

#2

Post by olva22 » Mon, Dec 28, 2015, 6:55 PM UTC

I 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.

Re: DIY air filter for polluted cities

#3

Post by olva22 » Mon, Dec 28, 2015, 7:01 PM UTC

olva22 wrote: post #2

I 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.