More on masks.
Okay, so the CDC wasn't completely evil. My conspiracy meter is calming down. It is true that with something like coronavirus, each R95 mask should be thrown away after each use - and of course, that's exceptionally problematic for public distribution and use.
It's unlikely that putting some additional cover over an R95 will actually work. Big university hospitals say there's no way to reuse them (and yet, of course, staff are being forced to, due to shortages).
Cleaning and Disinfecting: Public Health Respiratory Protection Program Template - Minnesota Dept. of Health
R95's can't be cleaned, apparently. OTOH, for most of us (if we had such a mask), a quick trip to the pharmacy while wearing one is going to offer protection and wearing a bandana or cloth mask under it (to protect it from your own respiration and whatever is already in your lungs) is an option.
I suppose we could all dress like beekeepers.