DIY Air Filter (Corsi-Rosenthal Box) for Wildfire Smoke

A recent post about the wildfire smoke in Canada reminded me of this Do-It-Yourself (DIY) project I recently read about. It seems fairly affordable and easy to construct.

Materials Needed:

1.) One 20-inch box fan (or, substitution)
2.) Four MERV13 (or, higher) 20-inch x 20-inch x 2-inch air filters
3.) Two 20-inch x 20-inch pieces of cardboard (can use the fan's cardboard box)
4.) One roll of duct tape (or, similar product)

Build Instructions - Infographic
Build Instructions - Video

Additional Information:

Corsi-Rosenthal Box
How to Improve the Efficiency of the Corsi-Rosenthal Box Air Cleaner
Research on DIY Air Cleaners to Reduce Wildfire Smoke Indoors - EPA
The Effectiveness of DIY Air Filtration Units - EPA

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Post Edited (The Dude Abides) : 6/16/2023 2:18:36 PM (GMT-8)