Ford's DIY anti-COVID air filtration system uses a simple box fan
May 19, 2021 | 11:31 am CDT
Ford COVID filter

Ford's latest innovation is a simple, do-it-yourself anti-COVID air filter created using a common box fan - certainly an unlikely product from the auto giant.

Designed with fan manufacturer Lasko, the "Scrappy Filtration" system is made from a cardboard base, a 20-inch fan, and a 20x20x4-inch air filter. The air filter is placed inside the folded cardboard base, with the fan placed on top. The fan operates on high for maximum filtration - propelling clean air downward as it pulls unfiltered air from above. 

Ford says the system is intended to supplement a room's existing filtration system to further help reduce the risk of COVID-19 concentration.

It's based on scientific research which asked "if a low-cost box fan air cleaner could mitigate the risk of airborne transmission of COVID-19 in a classroom equipped with a single horizontal unit ventilator."

Ford COVID filter

"The study found that box fan air cleaners like this can serve as an effective low-cost alternative for mitigating airborne transmission risks in poorly ventilated spaces."

Ford donated 20,000 kits to schools.

More information can be found here, as well as a downloadable template.

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Robert Dalheim

Robert Dalheim is an editor at the Woodworking Network. Along with publishing online news articles, he writes feature stories for the FDMC print publication. He can be reached at