West Coast social media users are sharing their DIY tips for building an air purifier at home as smoke from Canada wildfires are cloaking much of the East Coast
A Corsi-Rosenthal air purifier built by Liz Hradil is seen at her home in Syracuse, N.Y. after the wildfire smoke covered much of New York Wednesday, June 7, 2023. The method involves taping four air filters together with a box fan. Experts say the DIY method is highly effective against filtering air indoors against wildfire smoke.
Public health experts say Corsi-Rosenthal purifiers are highly effective at removing particles from the air. Petri Kalliomäki, a postdoctoral researcher at the University of Maryland’s School of Public Health, said their clean air delivery rate is relatively high and can be used to purify air against not only smoke, but pollen and viruses.
The power of social media led to the invention of the box, co-inventor Richard Corsi, dean of the College of Engineering at the University of California at Davis, told The Associated Press. He said in 2020, he was sketching one night and put the design up on Twitter. Jim Rosenthal, CEO of Tex-Air Filters, took the design and built it. Corsi said he wanted to create an inexpensive purifier that the average American could afford.
“There are a bunch of different designs people can choose from, and it’s really accessible to find the info,” she said of the DIY instructions online.
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