I’ve Had a Vest Go Off
If you haven’t experienced it yet. You ought to try it. They go off with a really big bang. Two things to consider. First, the neck hole is unbelievably small for a full grown man (Eastern Aero Service). I found it hard to breathe, it was so tight. And second, you do not have to cinch the waist strap very tightly to get a snug fit while inflated. Again, if you adjust it snug to begin with, it will be very tight (and hard to breathe) when inflated. If you replace the little “pill” triggers periodically, you shouldn’t have an accidental inflation. If you don’t, they can (and will) inflate in a locker. I now have mine switched to manual as I figure that the probability of needing it to inflate while I’m unconscious is many times smaller than the need to control when to inflate. (e.g. the need to swim away from the boat or untangle from rigging.)In regards to flying, you need to check with your airline's ticket agent first. CO2 cartridges are not allowed in checked baggage (UAL). Checked luggage is xrayed. We carried on our PFD's but had to leave the CO2 cartridges with the ticket agent (LAX, UAL). You may have had a different experience, but this is what happened to me.