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Corsi-Rosenthal Box
1 creator use or recommend it
▲ 1 active in the last 90 days
1 recommend
Last discussed Nov 7, 2026
A DIY air filter built from a box fan and MERV filters taped into a cube.
Recently discussed in
Your Home Might Be Destroying Your Health (& how to fix it) - Michael Feldstein
Michael Feldstein · Nov 7, 2026
What creators say
MF
Michael Feldstein
recommends
Used for: Low-cost DIY home air filtration
Praised: Cheap ($60-120), effective
vs: Better than small store-bought plastic air purifiers; downsides are being ugl...
"You can make an incredible air filter for 60 to $120 with Home Depot parts. Type in DIY air filter, Corsi-Rosenthal Box is like the most popular design. But it takes a few hours. The downside is it's kind of ugly and loud and it doesn't have a sen..."
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