Method CTB with inert gases

[PointlessDebate]

Hi everyone, I know that I am not the first one to open this topic, but if I wanted ton CTB with let's say, helium or nitrogen, am I forced to buy a shit-ton quantity of these ? I mean, I read here that I would need regulators, and the right amount of stuff and all... Can't I just put a plastic bag on my head, link the gas bottle and the bag with a pipe or whatever, and wait ? I saw that I would lose consciousness in a matter of seconds, the bag filled with my CO2 and the inert gas can't do the rest ? I'm not really rich, but it seems like the best way to go.
Sorry for my bad english, i'm french (which is a really good reason to want this), and thanks for your answers.

 

[zentiiicharcoal]

I'm pretty sure you can do this as you asked, if there is a steady supply to the bag, it should get it done. If i had the gas bottle you have i would have done this, but i cannot aquire that in a soon enough time frame

 

[locked*n*loaded]

There is too much pressure in a tank. It has to be regulated. The CO2 you exhale must be allowed to escape from the bag, or you'll trigger the hypercapnic response.

https://sanctioned-suicide.net/threads/nitrogen-method.183680/#post-2720019

i'm french (which is a really good reason to want this)

Why? What's wrong with being French? I could say the same thing about being American lol.

 

[PointlessDebate]

I'm pretty sure you can do this as you asked, if there is a steady supply to the bag, it should get it done. If i had the gas bottle you have i would have done this, but i cannot aquire that in a soon enough time frame

Nobody seems to agree with one another - while continuing my researchs, I found someone who said that the regulator is mandatory to regulate the pressure, which I understand. But it also seems that the CO2 MUST be out of the bag for the process, which I don't understand, because if the helium or whatever makes me lose consciousness within 1 minute, why would the CO2 bother me ? I don't care if i'm twitching or gasping for air as long as I can't feel it.

Why? What's wrong with being French? I could say the same thing about being American lol.

Ahahah, well it's a sort of a running-gag between me and a friend, mostly because we hate our government - but I must confess that I still prefer being french than american, sorry ahah

 

[NegevChina]

Nobody seems to agree with one another - while continuing my researchs, I found someone who said that the regulator is mandatory to regulate the pressure, which I understand. But it also seems that the CO2 MUST be out of the bag for the process, which I don't understand, because if the helium or whatever makes me lose consciousness within 1 minute, why would the CO2 bother me ? I don't care if i'm twitching or gasping for air as long as I can't feel it.

With no regulator the gas pressure will blow of the bag. Same if there is no way for the gas to get out of the bag once its full, it will blow up. If you stop filling the bag and flushing out the CO2, there is no guarantee that once you lose consciousness and start involuntary panic movement due to CO2 inhaling, you wont tear off the bag. One more thing to consider is that when you exhale your first breaths in the bag, you still release oxygen to the bag making it a longer time to pass out.

 

[Intoxicated]

But it also seems that the CO2 MUST be out of the bag for the process

I haven't seen any proof that removing CO2 from the bag is mandatory.

because if the helium or whatever makes me lose consciousness within 1 minute, why would the CO2 bother me ?

This question has been raised many times here, and so far I haven't seen any references to real researches that would confirm negative influence of CO2 on unconscious people. Scary speculations about "involuntary panic movements" are no more than guesses.

For those who are worried about "tearing the bag off", assuming that we are speaking of a properly sealed (e.g. with 10 rounds of PVC electrical tape) bag of a decent strength, I could advise to carry out an experiment, trying to break airtightness of such a construct on purpose, being fully conscious. And I would really love to witness how someone would do this being in a nearly comatose state ))

If you use nitrous oxide (which is widely available in small cartridges for making whipped cream) instead of plain inert gases, your sensitivity to CO2 will probably be reduced even before losing consciousness
https://i.sanctioned-suicide.net/images/2025/02/221151_Death_from_Nitrous_Oxide.pdf
https://i.sanctioned-suicide.net/images/2025/02/221152_nitrous_oxide_reduces_dyspnoea.pdf).

Breathing a mixture of 95% nitrogen and 5% oxygen for two minutes is likely sufficient to induce unconsciousness that is deep enough for extracting teeth without experiencing pain (in experiments of F. Hewitt, general anesthesia in patients who breathed such a mixture was achieved in 75 - 95 seconds, see https://i.sanctioned-suicide.net/images/2024/12/215946_N2O_-_BRITISH_JOURNAL_OF_ANAESTHESIA.pdf page 956).

 

[heyismeman]

It's more complicated but I was going to do this a 3 way solenoid valve which is set to a timer, take a huge benzo dose, and when unconscious being the system is timed it would close of oxygen the release nitrogen gas instead.

It's more complicated but I was going to do this a 3 way solenoid valve which is set to a timer, take a huge benzo dose, and when unconscious being the system is timed it would close of oxygen the release nitrogen gas instead.

And I would use a scuba mask, nothing too expensive but not a bag personally

 

[outrider567]

Nobody seems to agree with one another - while continuing my researchs, I found someone who said that the regulator is mandatory to regulate the pressure, which I understand. But it also seems that the CO2 MUST be out of the bag for the process, which I don't understand, because if the helium or whatever makes me lose consciousness within 1 minute, why would the CO2 bother me ? I don't care if i'm twitching or gasping for air as long as I can't feel it.

Ahahah, well it's a sort of a running-gag between me and a friend, mostly because we hate our government - but I must confess that I still prefer being french than american, sorry ahah

That's understandable, after all, the French have contributed much to the world, the Guillotine and Devil's Island, the Algerian Civil War, and the great French African Empire, where 22 African countries were invaded....However, I will admit that Napoleon was a genuine military genius

I haven't seen any proof that removing CO2 from the bag is mandatory.

This question has been raised many times here, and so far I haven't seen any references to real researches that would confirm negative influence of CO2 on unconscious people. Scary speculations about "involuntary panic movements" are no more than guesses.

For those who are worried about "tearing the bag off", assuming that we are speaking of a properly sealed (e.g. with 10 rounds of PVC electrical tape) bag of a decent strength, I could advise to carry out an experiment, trying to break airtightness of such a construct on purpose, being fully conscious. And I would really love to witness how someone would do this being in a nearly comatose state ))

If you use nitrous oxide (which is widely available in small cartridges for making whipped cream) instead of plain inert gases, your sensitivity to CO2 will probably be reduced even before losing consciousness
https://i.sanctioned-suicide.net/images/2025/02/221151_Death_from_Nitrous_Oxide.pdf
https://i.sanctioned-suicide.net/images/2025/02/221152_nitrous_oxide_reduces_dyspnoea.pdf).

Breathing a mixture of 95% nitrogen and 5% oxygen for two minutes is likely sufficient to induce unconsciousness that is deep enough for extracting teeth without experiencing pain (in experiments of F. Hewitt, general anesthesia in patients who breathed such a mixture was achieved in 75 - 95 seconds, see https://i.sanctioned-suicide.net/images/2024/12/215946_N2O_-_BRITISH_JOURNAL_OF_ANAESTHESIA.pdf page 956).

Wow, that last paragraph, didn't know that

 

[PointlessDebate]

Well thanks to all for your answers, it does really help me ! However I have another one : I recently came across an article saying that the Alabama state executed a man with nitrogen suffocation ; but apparently, he did suffocate and suffer. Why ? Could that happen to me ? The only objective that I have in doing this is to do it peacefully, without even feeling ANYTHING if possible.

https://jamanetwork.com/journals/jama/article-abstract/2819295

Oh and also, I can't really find how much of gas will be needed, do I need to spend 500€ on a gas tank ? It is really easy to get 2L tanks here, but it seems I need more, much more...

Okay so I keep editing this post like a moron, i'm sorry ahahah
On another thread on this site someone said that "you'll need a minimum of 600 liters of inert gas". Except that when I search for that, I find this. Seems pretty big isn't it ? I can't really imagine myself spend 1000+€ on a thing as big as the fucking Death Star, I just want to sit somewhere with my (movable) tank and just... do it you know ?

 

[outrider567]

Well thanks to all for your answers, it does really help me ! However I have another one : I recently came across an article saying that the Alabama state executed a man with nitrogen suffocation ; but apparently, he did suffocate and suffer. Why ? Could that happen to me ? The only objective that I have in doing this is to do it peacefully, without even feeling ANYTHING if possible.

https://jamanetwork.com/journals/jama/article-abstract/2819295

Oh and also, I can't really find how much of gas will be needed, do I need to spend 500€ on a gas tank ? It is really easy to get 2L tanks here, but it seems I need more, much more...

Okay so I keep editing this post like a moron, i'm sorry ahahah
On another thread on this site someone said that "you'll need a minimum of 600 liters of inert gas". Except that when I search for that, I find this. Seems pretty big isn't it ? I can't really imagine myself spend 1000+€ on a thing as big as the fucking Death Star, I just want to sit somewhere with my (movable) tank and just... do it you know ?

The death row inmate suffered because he fought it, he held his breath, he didn't suffocate, he just delayed it---Totally different from us, because we will not fight it, we'll embrace it, we'll take either normal or deep breaths

Well thanks to all for your answers, it does really help me ! However I have another one : I recently came across an article saying that the Alabama state executed a man with nitrogen suffocation ; but apparently, he did suffocate and suffer. Why ? Could that happen to me ? The only objective that I have in doing this is to do it peacefully, without even feeling ANYTHING if possible.

https://jamanetwork.com/journals/jama/article-abstract/2819295

Oh and also, I can't really find how much of gas will be needed, do I need to spend 500€ on a gas tank ? It is really easy to get 2L tanks here, but it seems I need more, much more...

Okay so I keep editing this post like a moron, i'm sorry ahahah
On another thread on this site someone said that "you'll need a minimum of 600 liters of inert gas". Except that when I search for that, I find this. Seems pretty big isn't it ? I can't really imagine myself spend 1000+€ on a thing as big as the fucking Death Star, I just want to sit somewhere with my (movable) tank and just... do it you know ?

600 liters is a small tank(but sufficient to CTB), my tank is 3500 liters, and mine weighs just 69 lbs, so a 600 liter tank probably only weighs 10 lbs, hardly a 'death star', and my big tank only cost $350

 

[PointlessDebate]

600 liters is a small tank(but sufficient to CTB), my tank is 3500 liters, and mine weighs just 69 lbs, so a 600 liter tank probably only weighs 10 lbs, hardly a 'death star', and my big tank only cost $350

I guess unit measurements are different between the US and here, because for me 600 liter is absolutely GIGANTIC, and nothing relevant pops up on the internet when i look for "600 liters nitrogen tanks", except for the infamous "death star" of earlier.
But, giving what you told me, i should find a 10lbs tank, and 10lbs equals to ≈4kg, so I guess that the standard tanks that I found on Amazon and all could work, no ?
Okay sorry for the incessant dumb questions asked a billion times already on this website, but all of this is pretty much overwhelming me ahah
So, I think I found a tank, a regulator and a way to make the bag. But how am I supposed to use that regulator ? Also, some say that I also need a "flow meter" but is that absolutely necessary ? Can't I just know which pressure I need to put with the regulator, and do it ? Will I need anything else besides the tank, the regulator, the bag and the hose ?

 

[outrider567]

I guess unit measurements are different between the US and here, because for me 600 liter is absolutely GIGANTIC, and nothing relevant pops up on the internet when i look for "600 liters nitrogen tanks", except for the infamous "death star" of earlier.
But, giving what you told me, i should find a 10lbs tank, and 10lbs equals to ≈4kg, so I guess that the standard tanks that I found on Amazon and all could work, no ?
Okay sorry for the incessant dumb questions asked a billion times already on this website, but all of this is pretty much overwhelming me ahah
So, I think I found a tank, a regulator and a way to make the bag. But how am I supposed to use that regulator ? Also, some say that I also need a "flow meter" but is that absolutely necessary ? Can't I just know which pressure I need to put with the regulator, and do it ? Will I need anything else besides the tank, the regulator, the bag and the hose ?

A 'click-style' nitrogen regulator comes with a flowmeter that's easiest to use, and yes, you need a flow meter, 15 lpm, 20 lpm, or 25 lpm are the recommended amounts, with 15 lpm for the exit bag, the trick is to use the correct style tubing, you'd best be served by going on the inert gas megathread

 

[Intoxicated]

However I have another one : I recently came across an article saying that the Alabama state executed a man with nitrogen suffocation ; but apparently, he did suffocate and suffer. Why ?

He was killed against his will to live, and he struggled, holding his breath for as long as he could. If you try to hold your breath for a few minutes, of course you will feel suffocation. But you likely wouldn't do this during a voluntary CTB attempt.

The only objective that I have in doing this is to do it peacefully, without even feeling ANYTHING if possible.

You're asking for too much ) Some unusual perceptions like ringing in the ears and tingling in the skin are possible and relatively common. They shouldn't cause any somewhat significant disturbance though.

Oh and also, I can't really find how much of gas will be needed, do I need to spend 500€ on a gas tank ?

That totally depends on the method you choose. If you have good understanding of physics and can process information well, then you could CTB using only a few liters of an asphyxiant gas. 50€ should suffice for a cheapest configuration that allows testing gas asphyxiation on yourself and actual CTB.

 

[devils~advocate]

600 liter would be the amount of compressed gas in the cylinder.
This amount is equal to 20 cubic feet. Its the smallest cylinder size offered.




This gentleman has a setup that looks well put together. You can see all the parts assembled, etc

My preparation and testing of N2 equipment

Here is a link that show the components and testing of my N2 system. I'll use it in the future when I lose my driver's license and independence.

sanctioned-suicide.net

Agreed, the inert gas megathread has a lot more information.

 

[PointlessDebate]

600 liter would be the amount of compressed gas in the cylinder.
This amount is equal to 20 cubic feet. Its the smallest cylinder size offered.

Of course it is the amount of COMPRESSED gas, I feel like such an idiot ahahah

This gentleman has a setup that looks well put together. You can see all the parts assembled, etc

My preparation and testing of N2 equipment

Here is a link that show the components and testing of my N2 system. I'll use it in the future when I lose my driver's license and independence.

sanctioned-suicide.net

Pretty much looks like what I was imagining - except he doesn't seem to have a flowmeter, does he ? I'm not against buying one if it helps, but it's so damn expensive, even more than the tank, so if I can CTB without it, it would be great

Agreed, the inert gas megathread has a lot more information.

Okay, I will spend time on it. Thanks to all of you for your answers !

 

[devils~advocate]

Of course it is the amount of COMPRESSED gas, I feel like such an idiot ahahah

Pretty much looks like what I was imagining - except he doesn't seem to have a flowmeter, does he ? I'm not against buying one if it helps, but it's so damn expensive, even more than the tank, so if I can CTB without it, it would be great

Okay, I will spend time on it. Thanks to all of you for your answers !

No problems at all.
Nah, there are no dumb questions about what has brought us all here.
Most people in their life don't have think about this sort of thing...thank goodness. I wished I was one.
So we are all learning about this. Inert gas method is technical by nature....and most avoid it due to this.

Yes that mega thread has a lot of information...discussions about setups, etc.
Im trying to make a guide graphically of different setups.
So any information is good....there are no dumb questions.

I think the regulator he is using in the video link, is a simple two stage type.
But yes it probably doesnt show 'flow'...just pressure.
You can get regulators that have a flow meter in them like image below. Its the tall glass part.
This one is in SCFH.....cubic feet per hour. I think 20 liters per minute (the recommended flow for ctb ) is about 42 scfh.