Jacob Russell 🌻 Profile picture
https://t.co/y6s3It2am4
Sep 29, 2021 • 5 tweets • 3 min read
Made a “Corsi Box” filter for my daughter’s classroom. It’s a box fan pulling air through 4 MERV 13 filters, which are fine enough to pull virus-laden particles out of the air. #corsibox #corsirosenthalbox @CorsIAQ @JimRosenthal4 For anyone who's interested in doing the same, here's some helpful links -

wgbh.org/news/local-new…

schools.forhealth.org/diy-air-cleane…

texairfilters.com/a-variation-on…