Oh that’s because of a different reason then. We went over that in the military because of the in vehicle fire suppression systems and now to treat injuries from that. Yeah it’s really easy. You prevent them. You aren’t saving someone that gets a lung full of freshly deployed high pressured co2 for gas suppression. Shit. There’s rough ways to die, that’s near the top of my list. It still doesn’t kill you because of overwhelming the bodies natural ph buffers but that’s because doing that takes too long. You inhale a full blast of that stuff and your lungs die in seconds from the mass damage done by the expansion of the gas as well as the pressure change of it. It’s similar to a flash freeze. This becomes toxic to the brain as well and causes bubbles and aneurisms to form.