BTW, with most surgical masks you are breathing via the non--seeled edgesm nott THRU the mask. This is why the masks are really only for protecting the other person (like a surgical patient or dental patient, nott the mask-wearer.
You'd need a mask with a tight seal, like a CPAP face mask with a microfilter to breathe thru, and the resistance for breathing would be troubling for most people, just as a gas mask is. Without a tight seal all around, you're just breathing thru the open side seams and accomplishing very little, as you'll still breathe in tiny aerosolized droplets suspended in the air.
When I pick up some highly CONtagious, extremely pathogenic virus from my raccoons, I'll be shure to visit all the churches, mosques, synagogues, and WalMarts whilst coughing, sneezing, and slobbering on the pews, carts, rugs, and door handles.