"Now let me tell you a few things about that mask you're wearing.... two OSHA mask experts spoke to the fact that the kinds of masks people are wearing were never (never!) designed to be worn for long periods and doing so is very harmful.
The blue typical mask... contain[s] Teflon and other chemicals... and are meant to be worn only for short periods, like say if you're sanding a table for an hour and don't want to inhale sawdust.
They don't do anything whatsoever to stop the spread of any virus...."
...viruses aren't even passed person to person. I know that sounds incredible, but it's the case that the virus is in the air, you breath it in, there's no way to prevent that short of living in an oxygen tent, and if you have a strong immune system you'll be fine. If you have a weak immune system you may have to deal with the effects of your immune system working to restore balance within your metabolism."