Thanks for presenting this on PYPT @jackmiller, as this is becoming a very pertinent topic for people to consider and needs to get out there.
Be advised that @bluefinstudios is correct about the paper masks, and there are also other considerations to consider, as one who was certified for confined space, no mask will properly seal if there is any facial hair that interferes with the proper fitting of the mask.
The other thing about these viruses is the fact that the majority of people who die from these usually die from prior health conditions that compromise one's health to begin with, such as older people or extremely young, or respiratory problems before coming in contact with the virus.
I am speaking from experience as I am one of those people.