Tag: smog

Building an anti-smog/covid air Filter Box

Annotations on building a box fan + air filter (Corsi-Rosenthal) box With the recent horrendous air quality in new york, I decided this was the time to build an air purifier. These were originally conceived to reduce the amount of covid-carrying aerosols in a room, but the same high-quality air filters that work against covid aerosols also work very well against harmful particulates. For my box I used: A 20 inch square Utilitech box fan Four MERV13-rated Filtrete electrostatic filters with dimensions 20 inch times 20 inch times 1 inch A roll of duct tape (I used white so the box would look neat) General architecture The filter box is a cube. Read more...