A DIY Air Purifier

Attention allergy sufferers: duct tape a HEPA filter to a cheap fan and you’ve got yourself a DIY air filter. With this simple hack you can reduce airborne particles by about 90%. This video, featuring Dr. Jeffrey E. Terrell, director of the Michigan Sinus Center, shows you how.

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  1. During last year’s Sonoma County fires, this setup was hugely popular —every hardware store had instructions to set one up. (It was also really effective!)

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