20 DIY Face Mask FILTER Materials Tested & Compared (Study ...
May 16, 2020·“The N95 respirator mask filters at least 95% of particles that measure 0.3 microns. There’s a lot of science to get to that 95-percent-or-better number that home sewers simply can’t replicate. This includes factors like the special electro-static material used in the masks, as well as considerations taken to mitigate the impact of ...