Questions about dry ice

[Sad_Sack]

I have read on this site that dry ice would produce the panic instinct like simply having a plastic bag over your head with no gas. It makes sense because of the c02 the dry ice production is but in all of the deaths from dry ice I have read about the people went out really fast.

Particularly interesting was the news story about a guy who hid in large container that had dry ice in it at his work to avoid some type of confrontation. His coworker opened it shortly after and he was dead. The story noted that the container was able to be opened from inside no problem. If it produced such a panic of suffocation why wouldn't he have just opened it or screamed? The incident in Russia with the pool and dry ice also seemed to just drop people without them showing signs of panic. Could the dry ice knock you out before you react to the co2? The story of the two women who died in the car because the husband stored dry ice in coolers in the back is the same thing. If they were feeling air starved why not open the window or pull over and get out? These stories sound so similar to inert gas and not simple suffocation. Any thoughts?

 

[Onomotopoeia]

Afraid I do not really have anything to add. Just following as I am curious as well

 

[Someone123]

I read a story about a worker who accidentally went into a room with some type of inert gaas, maybe nitrogen, and I think the article said this person probbly passd out in about four seconds and was found ten minutes later and they were dead. INert gases are very effective, and you pass out so fast there is no time to think of what to do and get out. HOwever for most people inert gas method won't work because you need a place where you can put this together and some mechanical skills. Charcoal is a similar method that is easier to do but you still need a good ploace to do thsi, which isn't easy- some people do get this to work in a car but you need to planb this carefully to not be seen or interrupted.

 

[Sad_Sack]

I read a story about a worker who accidentally went into a room with some type of inert gaas, maybe nitrogen, and I think the article said this person probbly passd out in about four seconds and was found ten minutes later and they were dead. INert gases are very effective, and you pass out so fast there is no time to think of what to do and get out. HOwever for most people inert gas method won't work because you need a place where you can put this together and some mechanical skills. Charcoal is a similar method that is easier to do but you still need a good ploace to do thsi, which isn't easy- some people do get this to work in a car but you need to planb this carefully to not be seen or interrupted.

Oh yeah. Things like nitrogen and helium would put you out without panic because you wouldn't sense the lack of oxygen and just hit the deck suddenly. I was asking because I read a lot of post on here that dry ice would not give you the false sense of breathing regularly. They basically said it would be like trying to ctb by just putting a plastic bag over your head. The stories I mentioned don't sound this way to me though.

 

[Someone123]

Oh yeah. Things like nitrogen and helium would put you out without panic because you wouldn't sense the lack of oxygen and just hit the deck suddenly. I was asking because I read a lot of post on here that dry ice would not give you the false sense of breathing regularly. They basically said it would be like trying to ctb by just putting a plastic bag over your head. The stories I mentioned don't sound this way to me though.

I just found an article about someone who did ctb using 50kg of dry ice in a car. It's not clear how long it took but its was clear it wasn't instant.

 

[Sad_Sack]

I read a story about a worker who accidentally went into a room with some type of inert gaas, maybe nitrogen, and I think the article said this person probbly passd out in about four seconds and was found ten minutes later and they were dead. INert gases are very effective, and you pass out so fast there is no time to think of what to do and get out. HOwever for most people inert gas method won't work because you need a place where you can put this together and some mechanical skills. Charcoal is a similar method that is easier to do but you still need a good ploace to do thsi, which isn't easy- some people do get this to work in a car but you need to planb this carefully to not be seen or interrupted.

Also, I was thinking about just filling a large cooler about halfway with dry ice and inserting a CPAP hose into it and just breathing through the mask. I have no idea if this would work or not though.

 

[👁️👃👁️]

Bumparilly

 

[Tiny Little Tree]

They might just not be documented in enough detail, like for the pool case a lot of articles just say "some choked and lost consciousness". Could be possible that concentration increased in a short enough time they quickly lost consciousness without panicking.

Panic response under hypercapnia does seem to be documented at least but I don't know a single thing beyond that. The term "hypercapnic alarm response" seems to only be used in the exit bag context (scholarly and pretty much otherwise). At least some of those papers are citing the PPH, so is Wikipedia.

 

[anxiousguineapig]

High concentrations of CO2 do not cause panic the way a gradual buildup does. In fact, high concentrations of CO2 are sometimes used to euthanize small animals in labs because they produce rapid unconsciousness and have a mild narcotic effect. (however, if the concentration is too high, it is painful to inhale - there is probably a sweet spot though, because some people have been reported as dying seemingly pretty easily this way).

 

[actual_fox]

There was a video of teenagers dropping huge amount of dry ice into pool in closed space and jumping into It. They all died. Co2 is heavy so It prob was right near water surface so as soon as they took breath In they inhaled all co2 and started panicking for few breaths then lost consciousness, drowned and died. But idk about co2 in high concentrations. Maybe it is different as @anxiousguineapig says

I drop this