DIY masks to protect against from viruses sounds like a crazy idea. Data shows masks work incredibly well, and they’re also really cheap. Surgical masks cost a few pennies, and they’re capable of filtering out 80% of particles down to 0.007 microns (14 times smaller than the coronavirus). However, the coronavirus outbreak brought with it […]
China
India
Mongolia
Bangladesh
Philippines
GlobalFollow Smart Air
© Copyright 2020 Smart Air. All content made available under Creative Commons BY-NC-SA-4.0
