Method Need clarification on asphyxia method (without inert gas)

[disgusting-life]

Okay, so I've read that for the first 30 seconds, you feel nothing. Nothing, in this sense is relative, you could feel light-headedness, initial anxiety, or an urge for a deeper breath.

Then, 30 seconds to a minute later, that's the self rescue window. This is also when the hypercapnic alarm (air hunger, terror) peaks. It's the only time the conscious mind knows it must act. If the bag is tied over tightly and properly, add that to the brain hypoxia simultaneously starting around that time, fueling the loss of coordination, proper judgement, planning, fine motility and cognitive function, then it's even more difficult to get your fingers to do what should be done, which is to untie the bag.

The survival instict is therefore nullified and rendered ineffective by the simultaneously occurring brain hypoxia that causes neurological impairment.

Unconsciousness from cerebral hypoxia typically occurs between 1 to 2 minutes, sometimes sooner. This is the beautiful point of no return for self-rescue.

After unconsciousness, the heart continues beating for a few minutes using the the remaining oxygen.

Irreversible brain damage begins after 4 to 5 minutes of total oxygen deprivation and cardiac arrest follows.



The only potential hurdles I see is the risk of being interrupted and the damned survival instict.

So if one makes sure to eliminate the risk of being interrupted or found for at least 10 minutes.( I think the method should take around 6 minutes though.)
Also, and if the rope is tightly secured...

P.S. • struggling or panicking increases metabolic rate and oxygen consumption, thereby shortening the time to unconsciousness.
• Smaller bag helps drastically
• Hyperventilation first: If one takes several deep breaths for about 30 to 60 seconds before sealing the bag. It lowers CO₂ levels temporarily, which could possibly delay the panic signal but not delay hypoxia. This could allow unconsciousness to occur with little to no warning, maybe just light-headedness, tunnel vision.
This is the best outcome because by the time the CO₂ levels build up enough (from their already lowered state due to the hyperventilation), one is already unconscious or much too impaired to act.

Please, are these facts correct?
If the facts are correct, I think this would be my method of choice.

 

[TheEmptyVoid]

But I inhaled 99.999% pure N2 nitrogen directly from the tank, and got lightheaded on the 2nd deep breath (I exhaled deeply before inhaling from the tank deeply for 2 seconds and held it in for 2 seconds and then exhaled deeply for 2 seconds) and repeated that 3 times, and on the 3rd breath, I passed out. No air hunger and no suffocating sensation at all, just me being extremely lightheaded, that kind of made me panic? But the panic is NOT as intense as holding your breath until you pass out obviously, at least for my experience.

 

[OzymandiAsh]

What exactly is your method? Night night or something?

 

[disgusting-life]

What exactly is your method? Night night or something?

Idk plastic bag asphyxia via rebreathing, i think.

 

[OzymandiAsh]

Idk plastic bag asphyxia via rebreathing, i think.

I don't know much except that it's gonna take a lot of willpower and be difficult. But if you wanna die by CO2, maybe look into the baking soda and citric acid method that's been discussed on the forum sometimes.

 

[disgusting-life]

I don't know much except that it's gonna take a lot of willpower and be difficult. But if you wanna die by CO2, maybe look into the baking soda and citric acid method that's been discussed on the forum sometimes.

Thanks, I'll look into it.

 

[peacefulsleepnow]

But I inhaled 99.999% pure N2 nitrogen directly from the tank, and got lightheaded on the 2nd deep breath (I exhaled deeply before inhaling from the tank deeply for 2 seconds and held it in for 2 seconds and then exhaled deeply for 2 seconds) and repeated that 3 times, and on the 3rd breath, I passed out. No air hunger and no suffocating sensation at all, just me being extremely lightheaded, that kind of made me panic? But the panic is NOT as intense as holding your breath until you pass out obviously, at least for my experience.

Did you use a mask of some kind? How were you breathing from the tank?

 

[mychois]

I think different gas has different impact on the body (especially the brain). People say CO is better than CO2 ...

 

[Intoxicated]

Okay, so I've read that for the first 30 seconds, you feel nothing. Nothing, in this sense is relative, you could feel light-headedness, initial anxiety, or an urge for a deeper breath.

Then, 30 seconds to a minute later, that's the self rescue window. This is also when the hypercapnic alarm (air hunger, terror) peaks. It's the only time the conscious mind knows it must act. If the bag is tied over tightly and properly, add that to the brain hypoxia simultaneously starting around that time, fueling the loss of coordination, proper judgement, planning, fine motility and cognitive function, then it's even more difficult to get your fingers to do what should be done, which is to untie the bag.

The survival instict is therefore nullified and rendered ineffective by the simultaneously occurring brain hypoxia that causes neurological impairment.

Unconsciousness from cerebral hypoxia typically occurs between 1 to 2 minutes, sometimes sooner. This is the beautiful point of no return for self-rescue.

If that's possible, it probably requires some very intense exercise to deplete oxygen so quickly. If you just lay still, you may need >4 minutes to achieve blackout. I was able to hold my breath for 2 minutes after a full exhale (hyperventilation was used beforehand in order to delay the sense of air hunger), and I didn't feel even slight lightheadedness.

Depletion of oxygen this way significantly differs from using those techniques when you displace oxygen from your lungs with some simple asphyxiant (like inert gas, DFE, or butane), making low partial pressure of O₂ there, so that the alveoli remove oxygen from the bloodstream similarly to how they normally remove carbon dioxide, and then blood oxygen saturation drops rapidly, making it possible to lose consciousness in a matter of seconds.

Hyperventilation first: If one takes several deep breaths for about 30 to 60 seconds before sealing the bag. It lowers CO₂ levels temporarily, which could possibly delay the panic signal but not delay hypoxia. This could allow unconsciousness to occur with little to no warning, maybe just light-headedness, tunnel vision.
This is the best outcome because by the time the CO₂ levels build up enough (from their already lowered state due to the hyperventilation), one is already unconscious or much too impaired to act.

This is basically what the SWB method relies on. Nevertheless, such an ideal scenario is hard to reproduce on purpose for many people. It's likely that you would start feeling very uncomfortable long before becoming insensitive to hypercapnia.

 

[disgusting-life]

I think different gas has different impact on the body (especially the brain). People say CO is better than CO2 ...

Yeah yeah it is actually, there's no panic at all, I think. I could use coal...nah

If that's possible, it probably requires some very intense exercise to deplete oxygen so quickly. If you just lay still, you may need >4 minutes to achieve blackout. I was able to hold my breath for 2 minutes after a full exhale (hyperventilation was used beforehand in order to delay the sense of air hunger), and I didn't feel even slight lightheadedness.

Depletion of oxygen this way significantly differs from using those techniques when you displace oxygen from your lungs with some simple asphyxiant (like inert gas, DFE, or butane), making low partial pressure of O₂ there, so that the alveoli remove oxygen from the bloodstream similarly to how they normally remove carbon dioxide, and then blood oxygen saturation drops rapidly, making it possible to lose consciousness in a matter of seconds.

This is basically what the SWB method relies on. Nevertheless, such an ideal scenario is hard to reproduce on purpose for many people. It's likely that you would start feeling very uncomfortable long before becoming insensitive to hypercapnia

So there's no way I could power through it? damn, might have to scratch out this method.

 

[DeathSweetDeath]

Is there any reason in particular why you wouldn't use inert gas?

 

[TheEmptyVoid]

Did you use a mask of some kind? How were you breathing from the tank?

I used my mouth on the opening of the hose connected directly to the tank sealed, with a regulator set at low pressure, because without the regulator, then it will shoot the gas at high pressure into my lungs and over inflate the lungs to the point of collapsing them, just low enough for me to breathe freely with my nose pinched closed, and to exhale, I put my mouth out of the hose and turn off the tank so I can exhale and then put my mouth on the hose's open end and turn on the tank to breathe the gas again while my nose is pinched closed, and obviously this is a test and obviously not doing it to kill myself, yet.

 

[Intoxicated]

So there's no way I could power through it?

Successful cases of suicides via plain suffocation with plastic bags suggest that it's a feasible method (as long as you have enough will power to endure the discomfort).

https://i.sanctioned-suicide.net/images/2025/02/221416_Plastic_bag_suffocation.pdf

Filling the bag with carbon dioxide and inhaling this gas at a concentration of 30% or more can speed up loss of consciousness greatly, reducing the duration of discomfort to 20 - 30 seconds.

If a simple asphyxiant is available, it can be used to cause LOC quickly with minimum discomfort, but its minimum efficient proportion to air in the breathed mixture is greater than that of carbon dioxide.

I'd do something like this

https://i.sanctioned-suicide.net/images/2025/02/221150_Fatal_Nitrous_Oxide_Intoxication.pdf

but without plastic tubing.

 

[maylurker]

would benzos help with terror and panic hypoxia induced?

 

[OzymandiAsh]

@Intoxicated Do you think using these cans would work? They're originally intended for aquariums, idk how pure they are or whether +30% can be achieved with them

Betta Co2 Replacement Canisters Pack Of 3 : Amazon.co.uk: Garden

Great prices on your favourite Gardening brands, and free delivery on eligible orders.

www.amazon.co.uk

 

[Intoxicated]

would benzos help with terror and panic hypoxia induced?

The so called "panic" is mostly caused by hypercapnia. Hypoxia is a much weaker stressor. Some suicides mentioned in this document https://i.sanctioned-suicide.net/images/2025/02/221416_Plastic_bag_suffocation.pdf were done with benzos in the people's blood. It's difficult to tell how much this helped them.

@Intoxicated Do you think using these cans would work? They're originally intended for aquariums, idk how pure they are or whether +30% can be achieved with them

I have no idea either. The description says "11G". If this is the mass of carbon dioxide, then it's just ~5.5 liters of gas. I'd use more for CTB.

 

[peacefulsleepnow]

I used my mouth on the opening of the hose connected directly to the tank sealed, with a regulator set at low pressure, because without the regulator, then it will shoot the gas at high pressure into my lungs and over inflate the lungs to the point of collapsing them, just low enough for me to breathe freely with my nose pinched closed, and to exhale, I put my mouth out of the hose and turn off the tank so I can exhale and then put my mouth on the hose's open end and turn on the tank to breathe the gas again while my nose is pinched closed, and obviously this is a test and obviously not doing it to kill myself, yet.

Thank you for such a thoughtful and detailed response!

 

[TheEmptyVoid]

Thank you for such a thoughtful and detailed response!

Is this sarcastic and also this isn't a suicide method as in terms of actually dying from it, or are you trying to be offensive for stupid reasons

 

[peacefulsleepnow]

Is this sarcastic and also this isn't a suicide method as in terms of actually dying from it, or are you trying to be offensive for stupid reasons

No I was being sincere. You didn't have to even answer that and I was asking because of ignorance. I'm sorry if you were offended. It's just how I talk.

 

[disgusting-life]

Is there any reason in particular why you wouldn't use inert gas?

Yes yes many reasons :(

 

[DeathSweetDeath]

Yes yes many reasons :(

Ok, sorry I asked .