The only reason paper medical masks exist is so surgeons don’t sneeze into an open wound. That’s it. Other than spittle, they filter nothing.
I wear those. Those and some gowns from ad agency whom had J&J as a client, left out in 1990.
They were going to be thrown in the trash so we asked for them.
Got a bunch, plus gowns. Some got wet and molded.
I refuse to go ‘designer’. None are any good. Use to think about wearing them just to keep people from getting too close. lol