Home » Clean Air Blog » Air Pollution » How to Use HEPA Air Purifiers for COVID-19 Protection How to Use HEPA Air Purifiers for COVID-19 Protection 2021/5/42021/4/15 作者 Boudewijn Sterk 哇!此内容没有中文版。点击这里快去看英文版! 你知道这些吗? Three Ways to Improve Indoor Ventilation to Combat COVID-19 Poor office ventilation leads to higher virus infection rates 打开窗户,空气净化器还有用吗? @Dyson,对于净化器CADR的几个误区,请查收