Who had a homemade mask made

I started a post about this a while back...someone went off saying that medical staff can not wear them blah blah blah...well smart guy....care to explain why EVERY STAFF member at my wifes rheumatologist is wearing home made mask?? Sure, they are not acceptable in a trauma unit. But for every thing else they are fine.
My wife had me make her this jig, speeds things up a bit...