I just hang it. Does that work?
* COVID19 isn't the only threat. Other germs can multiply with time. This is not the time to go to a hospital with an infection.
* When I last looked, there was preliminary evidence COVID itself survives surprisingly long in a mask (I think days)
It's annoying to see them going to people who don't use them right (a Republican senator was wearing one upside down). Incorrectly used, they're no better than a surgical mask.