I did a project at Anniston where I had to carry two respirators one that I wore for work and one that I carried in case the alarms went off next-door the incinerator. The good news is they were finished with the VX the bad news was they were burning mustard. Never needed the one on my hip.Never did. I Did McClellan, Benning, and Bragg as a 54b. Worked with enough guys at Bragg that had been there that I know what it's about.