Good ideas and conversation. No ads, no tracking. Login or Take a Tour!
The shit little blue masks are closer to felt than woven fabric which gives them better stochastic barrier performance. They can also (aren't always, but near as I can tell are most of the time) hold an electrostatic charge which attracts small particles. We've switched from cloth to hospital masks, especially now that we can get them. My walkaround masks are triple-layer woven but I keep a couple KN-95s in the car for when I'm feeling paranoid.