And the whole doctor thing or surgeon thing is extremely relevant in this case...
I mean who's going to tell their open heart surgeon but that mask doesn't do anything??..
Already been covered. Surgeons wear masks because of HUGE GAPING WOUNDS in front of their faces..... and the possibility that the fluids from the patient might also get to them as well. It's a completely different scenario. Masks do very little if anything in almost all cases. if they did, what difference does it make how close or far I am from you? If we're back to back, 3 inches apart, what then?