https://www.washingtonpost.com/health/2023/01/13/air-filter-diy-covid/
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How to make a DIY air filter with a box fan to protect against covid - The Washington Post
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1/13/23 at 2:00pm
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The Washington Post
Author
Lena H. Sun
Details
41 words
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Home Improvement Building Materials & Supplies Health General Reference box fan DIY air filter The Washington Post Corsi-Rosenthal Box
I am not a handy person and even I can DIY this indoor air filter. See how I made a Corsi-Rosenthal Box.
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