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LA TimesWith the reddish-orange skies and smoke-filled air, Californians who had previously never heard of PM2.5 pollution are quickly learning about the Air Quality Index and what they need to do to protect themselves from wildfire pollution. Smart Air’s data shows that if you turn off the filter, poor air quality can return in about 80 minutes. “When I started Smart Air, in a way I was really angry at larger purifier companies, because they’re out here trying to convince people it costs $1,000 to protect your health,” Talhelm said. Talhelm said their data didn’t show much difference between their DIY air purifiers made with expensive fans and cheaper fans, but if you have a choice, he recommends finding one that is strong. Smart Air’s data shows that it’s 11% more effective on the front, compared with the back, but Talhelm said it’s more important to put it on the side where the surface is flatter.
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