@AndrewMercado If you’re two feet away from someone with a knife, 1) take a step back. 2) shoot their arm/ shoulder.
What you don’t do is shoot them three times in the head with your gun less than a foot from their face.
@surveytheland@DocStrangelove2 It seals well enough for noxious gasses.
Had a fire training instructor with a giant, fluffy beard prove the SCBA seals despite the fluff by blocking the inlet and inhaling. Mask clamped down like an Alien face hugger.