WE had training on this stuff at my volunteer fire station. Bad Juju. If it’s aerosolized, a tiny whiff can put you down. It basically stops you from breathing. So they train us to wear effective PPE, and get out of there right away if we suspect the stuff is present.
Narcan will effectively bring you back, but the half life of Narcan is like 6 hours, and carfentanil’s half life is maybe forty hours, so a person has to be monitored continuously for that period of time, and re-dosed with narcan periodically.
Sadly, most fire dept calls are medical and, in big cities, most of them are drug ODs. This is going to greatly increase the risk to our brave first responders. Glad you got training on it, MH. The chance of inadvertently getting a whiff can put you down is bad (and very sad) news.
Narcan (naloxone) half average for adults about 1 hr...neonates...longer...carfentanil half life 7-8 hrs..either way ...you cannot fire and forget with narcan cuz if sometime takes massive opioid doses the narcan will wear off and the dangerous side effects of opioids could return and kill the user.. In hospitals they use continuous narcan infusions intravenously in patients who use long acting or massive opoid dose use..