Social media users are sharing a surprisingly effective way to protect yourself indoors from the toxic wildfire smoke blanketing much of the East Coast: a box fan, four air filters and a whole lot of duct tape.
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.
At the University of Connecticut Thursday, Misti Levy Zamora, an assistant professor in public health sciences, and her colleagues were handing out Corsi-Rosenthal purifiers for free to anyone stopping by. Zamora said she has done several tests at the university, public schools and her own home on the purifier.
“I can confidently say this thing is working really well today,” she said. “I was able to filter out all the particles in the air basically back down to what I saw last week within a matter of minutes.” 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.
“When you have to seal up a building and reduce the amount of air flow coming in and when you have to spend a lot of time indoors, this is where portable air cleaners can really make a difference in your life,” he said.
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