Stressor said:
I've grown tired of inhaling gas and everything in it so I'm taking a multi-faceted approach to increase my training effectiveness and shooting pleasure.
I've done plenty of NBC/CBRN training in my military career. I can tell you that wearing a mask that'll restrict your breathing does nothing to improve effectiveness and pleasure. Also any mask that uses external screw or filters will interfere with your ability to shoot accurately unless you're able to use it with only one filter on the offhand side.
Suppressor weren't used by my units, but I have thousands of rounds experience shooting blanks. A blank adapter redirects most of the gasses back out the chamber. I know I must of inhaled a lot of gasses, I just don't remember it effecting me.
I've done a lot of shooting in MOUT shooting live fire, rubber bullets, and blanks. You train like you fight, and I remember being out of breath and sometimes gagging from physical exertion, and once really messed up from heat exhaustion. I don't remember a time that I felt diminished by the blowback gasses of an M16 or other automatic weapons fire.
I really don't see gassing as a big issue when the majority of people train outdoors. Maybe if you're shooting indoors at a range or shoot houses, but most of those have very expensive mitigation systems that keep air moving and filtered. I also feel that any protective mask that doesn't have eye protection is worthless.
You can still absorb the same harmful things through eye and skin contact. Skin will be slower and can be washed of before it can do a lot of damage. The eyes is a far different story as you can be affected in some cases faster than inhalation. Shooting glasses do little to stop gasses from getting around the edges.