I read info from a doctor, who explained that an individual Rona viron is .006 to .14 nano something and a N95 mask stops particles .30 or bigger. The mask wearers creat a nice warm humid environment for everything sucked in and exhaled out, and they handle the mask and touch the face. No thanks. I will wash hands and not touch my face mask free.
I posted that info on the last thread.
That is why well people shouldn’t wear them, only sick people, so large clumps don’t go out into the air to land on well people.
But basically sick people should stay home, that’s simple logic. And well people should do whatever they want. :-)