As far as face masks go. I'd be very wary (especially if you have a beard). For my job as a bricklayer/stonemason, I have a proper, almost gasmask style mask. That I've been "face fitted" for. Face fitting is done by having your mask on &a Ned Kelly type bin/bucket over your head. After which a bitter tasting spray is administered. If you can taste it your mask don't fit properly. How big a particle of the spray is compared to a spore of the virus I don't know. But from what I've seen on TV & the way folks are waring their masks. I think they're more of a placebo effect. If you've got a beard don't bother with a mask you're most likely wasting your time. I feel for our NHS staff & all hospital workers around the world. There seems to be plenty of them contracting the virus. I know they're in the frontline, but I think their kit leaves a lot to be desired. Stewy