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thehorizons

Student
Mar 25, 2026
195
I'm starting to get a better picture of the nitrogen method in terms of where to source it, what I need, its effectiveness, etc. That said, I have several questions that I hope some of the experts on SaSu could shed some light on. There are three things I'm not clear on.

First, how could you actually restrain yourself when using this method? I'm looking at the PPH and from my understanding is that when we pull the exit bag down after hyperventiliating for 1–2 minutes, we would lose consciousness after taking one deep breath. If we lose consciousness we technically can't restrain ourselves after pulling the bag down. Or, do we pull the bag down first, restrain ourselves, and then take one deep breath to lose consciousness? The PPH doesn't mention anything about restraining oneself too. By restraining, I mean sitting in a chair with some chest straps to prevent convulsing after I lose consciousness.

Second, when we go unconscious, isn't there the possibility of our head thrashing about and tearing the exit bag open or the hose becomes loose?

Lastly, so when the nitrogen seeps out of the collar of the exit bag, would it be a danger to those entering the room later after we CTBed? I guess I have sense of altruism still. I was wondering, wouldn't the nitrogen fill the room? Do we leave a note to any coming into the room beforehand?

I probably have more questions than these, but these are just some lingering ones that I can't find an answer to on this forum.

Additionally, my equipment list is pretty bare bones right now:

– Nitrogen cylinder
– Regulator
– Exit bag that's a clear turkey bag (using a sweat band instead of an elastic collar since I can't find videos online on how to make it and this seems relatively effective)
– Chair (with the chest strap)
 
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outrider567

Illuminated
Apr 5, 2022
3,005
I'm starting to get a better picture of the nitrogen method in terms of where to source it, what I need, its effectiveness, etc. That said, I have several questions that I hope some of the experts on SaSu could shed some light on. There are three things I'm not clear on.

First, how could you actually restrain yourself when using this method? I'm looking at the PPH and from my understanding is that when we pull the exit bag down after hyperventiliating for 1–2 minutes, we would lose consciousness after taking one deep breath. If we lose consciousness we technically can't restrain ourselves after pulling the bag down. Or, do we pull the bag down first, restrain ourselves, and then take one deep breath to lose consciousness? The PPH doesn't mention anything about restraining oneself too. By restraining, I mean sitting in a chair with some chest straps to prevent convulsing after I lose consciousness.

Second, when we go unconscious, isn't there the possibility of our head thrashing about and tearing the exit bag open or the hose becomes loose?

Lastly, so when the nitrogen seeps out of the collar of the exit bag, would it be a danger to those entering the room later after we CTBed? I guess I have sense of altruism still. I was wondering, wouldn't the nitrogen fill the room? Do we leave a note to any coming into the room beforehand?

I probably have more questions than these, but these are just some lingering ones that I can't find an answer to on this forum.

Additionally, my equipment list is pretty bare bones right now:

– Nitrogen cylinder
– Regulator
– Exit bag that's a clear turkey bag (using a sweat band instead of an elastic collar since I can't find videos online on how to make it and this seems relatively effective)
– Chair (with the chest strap)
Inert Gas Mega Thread is where you'll find answers--During my tests on myself(not recommended!), I estimate it would take about 10 deep breaths to pass out, not one breath--After about 6 breaths,I ripped my EEBD Hood off after my fingertip pulse oximeter dropped to 77, but the reality was it was already down to 40, with the delay
I'm starting to get a better picture of the nitrogen method in terms of where to source it, what I need, its effectiveness, etc. That said, I have several questions that I hope some of the experts on SaSu could shed some light on. There are three things I'm not clear on.

First, how could you actually restrain yourself when using this method? I'm looking at the PPH and from my understanding is that when we pull the exit bag down after hyperventiliating for 1–2 minutes, we would lose consciousness after taking one deep breath. If we lose consciousness we technically can't restrain ourselves after pulling the bag down. Or, do we pull the bag down first, restrain ourselves, and then take one deep breath to lose consciousness? The PPH doesn't mention anything about restraining oneself too. By restraining, I mean sitting in a chair with some chest straps to prevent convulsing after I lose consciousness.

Second, when we go unconscious, isn't there the possibility of our head thrashing about and tearing the exit bag open or the hose becomes loose?

Lastly, so when the nitrogen seeps out of the collar of the exit bag, would it be a danger to those entering the room later after we CTBed? I guess I have sense of altruism still. I was wondering, wouldn't the nitrogen fill the room? Do we leave a note to any coming into the room beforehand?

I probably have more questions than these, but these are just some lingering ones that I can't find an answer to on this forum.

Additionally, my equipment list is pretty bare bones right now:

– Nitrogen cylinder
– Regulator
– Exit bag that's a clear turkey bag (using a sweat band instead of an elastic collar since I can't find videos online on how to make it and this seems relatively effective)
– Chair (with the chest strap)
'Danger to others while entering the room', not likely--But I will put up a couple of 'warning Nitrogen' signs on the door just to make sure
I see. I haven't gotten the supplies, but I definitely know that hyperventilating is key since it induces this hypoxic state. Just a final question, do you think you would have passed out eventually if you didn't take it off? Thanks for all your input.
Hyperventilating is not essential, but it may help
 
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thehorizons

Student
Mar 25, 2026
195
To be honest, I was pretty riled up after that experience. Just trying to gather strength for the next and hopefully final one. The time spent in the bag really enhanced my adrenaline. I couldn't sleep for a whole day after that.

Its 99 * food grade. My doubt lies on not hyperventilating.
Do you remember what LPM of Nitrogen you had it at? I just tried it today, but had a different experience. In my mind's eye, I thought the whole process would be a euphoric gradual drift to slumber, so I did some testing cause in my mind's eye I would be able to take the exit bag off when my vision would start to fade.

I didn't inflate the exit bag on top of my head and hyperventilate beforehand since I was testing, so I just put on the exit bag and inflated it. I was using an Argon flowmeter/regulator, so I set the LPM to 17 LPM, which is what most SaSu users have recommended. Quite quickly I felt a loud ringing sound in my ear, a desire to spit/puke, disoriented, and dizzy. During the whole episode, I knocked the tank over and realized that I had done so after I took the bag off. I think that if I didn't take the bag off I would've lost consciousness.

I'm wondering if the rate of the Nitrogen getting into the bag is a factor in all of this. I've been noticing that some users mention it being a slow or an euphoric experience, but maybe it's because the rate of the Nitrogen getting into the bag isn't high enough.
Inert Gas Mega Thread is where you'll find answers--During my tests on myself(not recommended!), I estimate it would take about 10 deep breaths to pass out, not one breath--After about 6 breaths,I ripped my EEBD Hood off after my fingertip pulse oximeter dropped to 77, but the reality was it was already down to 40, with the delay

'Danger to others while entering the room', not likely--But I will put up a couple of 'warning Nitrogen' signs on the door just to make sure

Hyperventilating is not essential, but it may help
What rate of Nitrogen did you set it at? I'm using an Argon flowmeter/regulator and set it at 17 LPM, as, apparently, it's recommended by several users on here. I was doing some testing, but I'm pretty sure if I took one or two deep breaths, I would've CTB-ed. I felt nasty side effects though like feeling dizzy, getting tinnitus, and feeling disoriented. I think if I did it properly, I would've lost consciousness and, in effect, would've bypassed the nasty side effects.
 
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behindtheveil

behindtheveil

Member
Oct 12, 2025
347
Do you remember what LPM of Nitrogen you had it at? I just tried it today, but had a different experience. In my mind's eye, I thought the whole process would be a euphoric gradual drift to slumber, so I did some testing cause in my mind's eye I would be able to take the exit bag off when my vision would start to fade.

I didn't inflate the exit bag on top of my head and hyperventilate beforehand since I was testing, so I just put on the exit bag and inflated it. I was using an Argon flowmeter/regulator, so I set the LPM to 17 LPM, which is what most SaSu users have recommended. Quite quickly I felt a loud ringing sound in my ear, a desire to spit/puke, disoriented, and dizzy. During the whole episode, I knocked the tank over and realized that I had done so after I took the bag off. I think that if I didn't take the bag off I would've lost consciousness.

I'm wondering if the rate of the Nitrogen getting into the bag is a factor in all of this. I've been noticing that some users mention it being a slow or an euphoric experience, but maybe it's because the rate of the Nitrogen getting into the bag isn't high enough.

What rate of Nitrogen did you set it at? I'm using an Argon flowmeter/regulator and set it at 17 LPM, as, apparently, it's recommended by several users on here. I was doing some testing, but I'm pretty sure if I took one or two deep breaths, I would've CTB-ed. I felt nasty side effects though like feeling dizzy, getting tinnitus, and feeling disoriented. I think if I did it properly, I would've lost consciousness and, in effect, would've bypassed the nasty side effects.
Wow , that must have been quite an experience. I am glad you are here to talk about it.
Just like yours, my experience wasn't euphoric as well. But my bag did inflate properly. One reason for not drifting away rapidly is the presence of air within the bag and our lungs. What I've read is that for any loss of consciousness to take place the brain has to be deprived of o2 and like our methods, we clearly had breathable o2 in our lungs and the bag. May be that's why.
Did you have any SI reaction kick in?
PS: rate of flow for me was 15 lpm
 
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thehorizons

Student
Mar 25, 2026
195
Wow , that must have been quite an experience. I am glad you are here to talk about it.
Just like yours, my experience wasn't euphoric as well. But my bag did inflate properly. One reason for not drifting away rapidly is the presence of air within the bag and our lungs. What I've read is that for any loss of consciousness to take place the brain has to be deprived of o2 and like our methods, we clearly had breathable o2 in our lungs and the bag. May be that's why.
Did you have any SI reaction kick in?
PS: rate of flow for me was 15 lpm
Yeah, I also suspect it's the O2 in our lungs that's why we didn't CTB.

I had SI because I didn't want to CTB today. Besides, I was more in the 'dip my toes in' kind of mindset – I just wanted to get a taste of what it was like. Also, I haven't finished writing my letters/instructions yet and calling my friends up, so I didn't want to do it today. I'm convinced that this method is fatal if things go according to plan and I'll probably use it next month.

I think that the euphoric experience that some people claim is only possible if you set the Nitrogen gas at a low rate. Then, maybe, it's like a gradual driftoff. That said, I don't think the method is intended to be a gradual driftoff. I think the goal is to lose consciousness rapidly and CTB.

All in all, I think the experience was akin to taking too much Cannabis edibiles. You get a raging headache (maybe not raging but still strong) and feel groggily disoriented/dizzy.

Additionally, I felt that all these sensations just hit me instantly. Like I scrunched all the air out of the exit bag, pulled the bag down, inflated the bag, and breathed normally. Suddenly, a wave of side effects just came rushing all at once. After removing the bag, I was still disoriented for at least a good hour. I was so disoriented that after immediately removing the bag, I even forgot to turn the regulator off and close the cylinder valve before unscrewing the regulator from the cylinder. That led to a bunch of Nitrogen gas spewing out of the cylinder valve. Luckily, I didn't completely unscrew the regulator from the cylinder valve and managed to turn off the cylinder in time.
 
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behindtheveil

behindtheveil

Member
Oct 12, 2025
347
Yeah, I also suspect it's the O2 in our lungs that's why we didn't CTB.

I had SI because I didn't want to CTB today. Besides, I was more in the 'dip my toes in' kind of mindset – I just wanted to get a taste of what it was like. Also, I haven't finished writing my letters/instructions yet and calling my friends up, so I didn't want to do it today. I'm convinced that this method is fatal if things go according to plan and I'll probably use it next month.

I think that the euphoric experience that some people claim is only possible if you set the Nitrogen gas at a low rate. Then, maybe, it's like a gradual driftoff. That said, I don't think the method is intended to be a gradual driftoff. I think the goal is to lose consciousness rapidly and CTB.

All in all, I think the experience was akin to taking too much Cannabis edibiles. You get a raging headache (maybe not raging but still strong) and feel groggily disoriented/dizzy.

Additionally, I felt that all these sensations just hit me instantly. Like I scrunched all the air out of the exit bag, pulled the bag down, inflated the bag, and breathed normally. Suddenly, a wave of side effects just came rushing all at once. After removing the bag, I was still disoriented for at least a good hour. I was so disoriented that after immediately removing the bag, I even forgot to turn the regulator off and close the cylinder valve before unscrewing the regulator from the cylinder. That led to a bunch of Nitrogen gas spewing out of the cylinder valve. Luckily, I didn't completely unscrew the regulator from the cylinder valve and managed to turn off the cylinder in time.
Another thing that I read in the final exit book is that it is advisable to have the last meal before 2 to 3 hours as it gives enough time to digest and thereby avoiding any puking sensation.
 
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Intoxicated

Intoxicated

Man
Nov 16, 2023
1,292
You get a raging headache (maybe not raging but still strong)
Really? Headache doesn't seem to be a commonly mentioned symptom among those who tried gas asphyxiation. Maybe it depends on health conditions. How often do you have headaches without an apparent connection to prior use of specific substances?
 
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thehorizons

Student
Mar 25, 2026
195
Really? Headache doesn't seem to be a commonly mentioned symptom among those who tried gas asphyxiation. Maybe it depends on health conditions. How often do you have headaches without an apparent connection to prior use of specific substances?
Maybe, it's dizziness. It's almost the same feeling that one has when they consume too much Cannabis edibles (e.g. extremely dizzy, disoriented, wanting to puke, losing some volitional control). It clears up fast. I'm pretty sure I had the same experience as others did with the dizziness, ears ringing, and wanting to puke. I think you'll get all these symptoms if you're close to passing out or losing consciousness. I blasted a lot of Nitrogen into the exit bag as well. I'm assuming 17 LPM as indicated on the Argon flowmeter is more than 15 LPM of Nitrogen. I think if I did the method proper, I would've lost consciousness. I think euphoric stage without the headaches is when you don't have enough Nitrogen gas flowing into the bag hence why some people say that they need 6–10 deep breaths to pass out.
 
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thehorizons

Student
Mar 25, 2026
195
Another thing that I read in the final exit book is that it is advisable to have the last meal before 2 to 3 hours as it gives enough time to digest and thereby avoiding any puking sensation.
By the way, were you using an Argon regulator/flowmeter? Also, you used an exit bag, right? I'm wondering if 17 LPM is too high.
 
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behindtheveil

behindtheveil

Member
Oct 12, 2025
347
By the way, were you using an Argon regulator/flowmeter? Also, you used an exit bag, right? I'm wondering if 17 LPM is too high.
oh mine is an O2 regulator and 17 is the perfect setting for flow. I did use an exit bag. Where did you place the mouth of the nozzle within the bag? I mean was it at your nose kevel when you pulled the bag down or above or at your head. the reason i am asking os because getting rid of co2 is also important.
 
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thehorizons

Student
Mar 25, 2026
195
oh mine is an O2 regulator and 17 is the perfect setting for flow. I did use an exit bag. Where did you place the mouth of the nozzle within the bag? I mean was it at your nose kevel when you pulled the bag down or above or at your head. the reason i am asking os because getting rid of co2 is also important.
I was just holding it and placing it high up on the bag (I think it was nose level). Btw, what hose are you using? I'm using a 1/4 PVC hose and I could taste the toxic smell. I know it wouldn't matter for the real thing, but as long as I'm doing my testing it leaves a bad taste/smell. I'm ordering an oxygen tube at the moment. I think the cannula would fit the 1/4 barb, hopefully. There are some users (e.g. @SomewhereAlongThe) that have CTB-ed already with this method and used oxygen tubing with a regulator with a 1/4 barb, so I'm guessing it works.

The CO2 doesn't seem to be a huge factor because everything happened quickly, so I'm guessing it was more to do with the Nitrogen. I also tried another test run today (not doing the proper protocol) with 13 LPM instead as indicated by the Argon regulator (I'm guessing it was about 15 LPM of Nitrogen flowing in). I put my head in the bag, inflated the bag, and just breathed. My heart rate was beating faster and I felt I couldn't breathe a bit. I also felt lightheaded. I'm not sure if this breatheless sensation is from the CO2 or from the Nitrogen cause when I just wore the exit bag and breathed, I felt my breathing was laboured a bit but I could still breathe. Maybe, it's from the Nitrogen. I think all the nasty side effects would be present if you use the gas at a medium amount. If you use it at a high amount, you lose consciousness quickly enough and can bypass the process (or at the very least it won't last long).

I think 17–18 LPM with the Argon regulator/flowmeter is the right amount then. It'll use up a lot of gas, but you would lose consciousness faster.
 
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behindtheveil

behindtheveil

Member
Oct 12, 2025
347
I was just holding it and placing it high up on the bag (I think it was nose level). Btw, what hose are you using? I'm using a 1/4 PVC hose and I could taste the toxic smell. I know it wouldn't matter for the real thing, but as long as I'm doing my testing it leaves a bad taste/smell. I'm ordering an oxygen tube at the moment. I think the cannula would fit the 1/4 barb, hopefully. There are some users (e.g. @SomewhereAlongThe) that have CTB-ed already with this method and used oxygen tubing with a regulator with a 1/4 barb, so I'm guessing it works.

The CO2 doesn't seem to be a huge factor because everything happened quickly, so I'm guessing it was more to do with the Nitrogen. I also tried another test run today (not doing the proper protocol) with 13 LPM instead as indicated by the Argon regulator (I'm guessing it was about 15 LPM of Nitrogen flowing in). I put my head in the bag, inflated the bag, and just breathed. My heart rate was beating faster and I felt I couldn't breathe a bit. I also felt lightheaded. I'm not sure if this breatheless sensation is from the CO2 or from the Nitrogen cause when I just wore the exit bag and breathed, I felt my breathing was laboured a bit but I could still breathe. Maybe, it's from the Nitrogen. I think all the nasty side effects would be present if you use the gas at a medium amount. If you use it at a high amount, you lose consciousness quickly enough and can bypass the process (or at the very least it won't last long).

I think 17–18 LPM with the Argon regulator/flowmeter is the right amount then. It'll use up a lot of gas, but you would lose consciousness faster.
The test that you did today, what was your main purpose behind it?
As far as I have researched and tried, all my conclusions have come up to the point that this is a protocol centric method. Any omission of any step doesn't produce the desired results. And I do agree of the bad taste it leaves. Also you mentioned the restlessness you felt when you put the bag on- do you think it might be a SI response or something else?
 
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adamantc

Member
Mar 29, 2026
63
Based on the PPH and from my understanding, wouldn't all the nitrogen eventually leak out? I mean initially the oxygen and carbon dioxide are leaking out after being displaced by the nitrogen, but then as the nitrogen keeps flowing into the bag as lose consciousness and CTB it'll leak out as well.
the air is 79% nitrogen. The small amount of nitrogen that leaks will not make a big change.
 
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thehorizons

Student
Mar 25, 2026
195
The test that you did today, what was your main purpose behind it?
As far as I have researched and tried, all my conclusions have come up to the point that this is a protocol centric method. Any omission of any step doesn't produce the desired results. And I do agree of the bad taste it leaves. Also you mentioned the restlessness you felt when you put the bag on- do you think it might be a SI response or something else?
I wanted to see what the experience would be like or get a taste of it. I did the test today to see if I did it wrong yesterday and what this 'happy' hypoxic state was. It seems that yesterday was close to what the protocol described. The PPH doesn't mention the negative side effects, but everything seems to be in line in terms of losing consciousness rapidly with a few deep breaths. I think if I were to keep breathing in that bag or did the protocol properly, I would've passed out and CTB-ed. I didn't really notice a suffocating feeling nor a rapid heart too yesterday. It just happened really fast.

In the test today, I didn't feel restless. It was breathlessness, my heart rate shot up really quickly, and I felt lightheaded. I think it tracks with what one user said on here a while back. It wasn't SI. It's not like what anesthesia feels like. With anesthesia, you quickly drift off and lose consciousness. Yesterday, it felt like a wave of negative symptoms and then you almost lose consciousness. It felt like consuming a huge amount of Cannabis edibles then losing consciousness. Yes, you're right, it's based on protocol. I don't know about this 'happy' hypoxic state that is being described in the literature (maybe it's Nitrogen at a low amount), but I think the key thing is, make sure you have a high amount of Nitrogen blasting into your exit bag, put the exit bag on top your head before pulling it down, and hyperventilate cause if you don't do this you're going to draw out the negative side effects. I'm pretty sure I was on the verge of losing consciousness yesterday, as I kicked my Nitrogen tank without realizing it until I took the exit bag off. I don't think it was because the ringing sound muffled the sound either.

Also, are you using a pvc hose? You mentioned the smell tasted that bad.

For now, I'm not going to do further testing on myself. I'm just awaiting on the toggle and Oyxgen tubing. I might try inflating the bag on top of my head, test how strong the Oxygen tubing is, and purchase a zero gravity chair. I think I get the picture of what this method is like. It's not a 'Nembutal' death, but, if yesterday was any insight, it probably is an effective one if done right and lost of consciousness would be quick.
 
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behindtheveil

behindtheveil

Member
Oct 12, 2025
347
I wanted to see what the experience would be like or get a taste of it. I did the test today to see if I did it wrong yesterday and what this 'happy' hypoxic state was. It seems that yesterday was close to what the protocol described. The PPH doesn't mention the negative side effects, but everything seems to be in line in terms of losing consciousness rapidly with a few deep breaths. I think if I were to keep breathing in that bag or did the protocol properly, I would've passed out and CTB-ed. I didn't really notice a suffocating feeling nor a rapid heart too yesterday. It just happened really fast.

In the test today, I didn't feel restless. It was breathlessness, my heart rate shot up really quickly, and I felt lightheaded. I think it tracks with what one user said on here a while back. It wasn't SI. It's not like what anesthesia feels like. With anesthesia, you quickly drift off and lose consciousness. Yesterday, it felt like a wave of negative symptoms and then you almost lose consciousness. It felt like consuming a huge amount of Cannabis edibles then losing consciousness. Yes, you're right, it's based on protocol. I don't know about this 'happy' hypoxic state that is being described in the literature (maybe it's Nitrogen at a low amount), but I think the key thing is, make sure you have a high amount of Nitrogen blasting into your exit bag, put the exit bag on top your head before pulling it down, and hyperventilate cause if you don't do this you're going to draw out the negative side effects. I'm pretty sure I was on the verge of losing consciousness yesterday, as I kicked my Nitrogen tank without realizing it until I took the exit bag off. I don't think it was because the ringing sound muffled the sound either.

Also, are you using a pvc hose? You mentioned the smell tasted that bad.

For now, I'm not going to do further testing on myself. I'm just awaiting on the toggle and Oyxgen tubing. I might try inflating the bag on top of my head, test how strong the Oxygen tubing is, and purchase a zero gravity chair. I think I get the picture of what this method is like. It's not a 'Nembutal' death, but, if yesterday was any insight, it probably is an effective one if done right and lost of consciousness would be quick.
Makes sense!
The hyperventilating part is what I am having trouble with. Any tips would be highly helpful.
I wanted to see what the experience would be like or get a taste of it. I did the test today to see if I did it wrong yesterday and what this 'happy' hypoxic state was. It seems that yesterday was close to what the protocol described. The PPH doesn't mention the negative side effects, but everything seems to be in line in terms of losing consciousness rapidly with a few deep breaths. I think if I were to keep breathing in that bag or did the protocol properly, I would've passed out and CTB-ed. I didn't really notice a suffocating feeling nor a rapid heart too yesterday. It just happened really fast.

In the test today, I didn't feel restless. It was breathlessness, my heart rate shot up really quickly, and I felt lightheaded. I think it tracks with what one user said on here a while back. It wasn't SI. It's not like what anesthesia feels like. With anesthesia, you quickly drift off and lose consciousness. Yesterday, it felt like a wave of negative symptoms and then you almost lose consciousness. It felt like consuming a huge amount of Cannabis edibles then losing consciousness. Yes, you're right, it's based on protocol. I don't know about this 'happy' hypoxic state that is being described in the literature (maybe it's Nitrogen at a low amount), but I think the key thing is, make sure you have a high amount of Nitrogen blasting into your exit bag, put the exit bag on top your head before pulling it down, and hyperventilate cause if you don't do this you're going to draw out the negative side effects. I'm pretty sure I was on the verge of losing consciousness yesterday, as I kicked my Nitrogen tank without realizing it until I took the exit bag off. I don't think it was because the ringing sound muffled the sound either.

Also, are you using a pvc hose? You mentioned the smell tasted that bad.

For now, I'm not going to do further testing on myself. I'm just awaiting on the toggle and Oyxgen tubing. I might try inflating the bag on top of my head, test how strong the Oxygen tubing is, and purchase a zero gravity chair. I think I get the picture of what this method is like. It's not a 'Nembutal' death, but, if yesterday was any insight, it probably is an effective one if done right and lost of consciousness would be quick.
Makes sense!
The hyperventilating part is what I am having trouble with. Any tips would be highly helpful.
 
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Intoxicated

Intoxicated

Man
Nov 16, 2023
1,292
Maybe, it's dizziness.
I think, dizziness and headache are different things. I'm not a native English speaker though.
It's almost the same feeling that one has when they consume too much Cannabis edibles
I never tried to consume cannabis. In a few tests with asphyxiation by nitrous, the symptoms occurred in the following order:
  1. high-pitched ringing in the ears, clouding of consciousness (or the sense of impending fainting);
  2. blurriness and dimness of vision;
  3. weakness, loss of coordination, wind-like noise in the ears, increased respiratory demand;
  4. numbness in the face and lips (pretty similar to what can be produced by lidocaine), slight tension in the head (without headache), decrease of noises in the ears;
  5. profound numbness in the whole body, loss of the sense of gravity;
  6. tingling sensations in the face and lips, palms and fingers of both hands, near-unconsciousness;
  7. unconsciousness.
(e.g. extremely dizzy, disoriented
Dizziness seems synonymical to clouding of consciousness, and disorientation comes from it.
wanting to puke
I remember nausea described as a rare aftereffect of brief acute hypoxia or a more frequent effect that can take place during or after prolonged hypoxia, but I've never seen it mentioned as happening during brief acute hypoxia caused by gas asphyxiation. You seem to be the first person who reports nausea occurring so quickly.
losing some volitional control
This is what happens when the time of useful consciousness ends.
I'm pretty sure I had the same experience as others did with the dizziness, ears ringing, and wanting to puke.
I think, clouding of consciousness is what everyone gets.
Ringing is a frequent symptom, but it may be absent for some people.
In case of brief acute hypoxia, nausea is a rare symptom that appears as an aftereffect.
 
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thehorizons

Student
Mar 25, 2026
195
I think, dizziness and headache are different things. I'm not a native English speaker though.

I never tried to consume cannabis. In a few tests with asphyxiation by nitrous, the symptoms occurred in the following order:
  1. high-pitched ringing in the ears, clouding of consciousness (or the sense of impending fainting);
  2. blurriness and dimness of vision;
  3. weakness, loss of coordination, wind-like noise in the ears, increased respiratory demand;
  4. numbness in the face and lips (pretty similar to what can be produced by lidocaine), slight tension in the head (without headache), decrease of noises in the ears;
  5. profound numbness in the whole body, loss of the sense of gravity;
  6. tingling sensations in the face and lips, palms and fingers of both hands, near-unconsciousness;
  7. unconsciousness.

Dizziness seems synonymical to clouding of consciousness, and disorientation comes from it.

I remember nausea described as a rare aftereffect of brief acute hypoxia or a more frequent effect that can take place during or after prolonged hypoxia, but I've never seen it mentioned as happening during brief acute hypoxia caused by gas asphyxiation. You seem to be the first person who reports nausea occurring so quickly.

This is what happens when the time of useful consciousness ends.

I think, clouding of consciousness is what everyone gets.
Ringing is a frequent symptom, but it may be absent for some people.
In case of brief acute hypoxia, nausea is a rare symptom that appears as an aftereffect.
I'm definitely not the first. It seems many people get the dizziness. Disoriented, dizziness, or nausea. Who cares with the terminology? They're in the same ballpark. The point is we all feel dizzy and that precedes the lost of consciousness. I got a taste of what it would be like if done correctly and it aligns with some of the symptoms you listed. The intent is to get the lost of consciousness quickly and to understand that it's fatal, which I think I kind of got with my experiment since I kicked over the cylinder without realizing it until I took my exit bag off. Why fuss or contemplate over the minute steps, science, and exact physiology behind it? You just follow the steps in the protocol and hopefully CTB. That's it. I don't think this is a pretty death either. There're pictures of helium deaths online and they don't seem pretty to me. Some people had puke gushing out of their mouths. I think Kenneth Smith had that as well. I think this method isn't peaceful, but it's quick if executed properly. You can lose consciousness quickly, but it's not an alternative to N or the like.
 
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Intoxicated

Intoxicated

Man
Nov 16, 2023
1,292
I'm definitely not the first. It seems many people get the dizziness. Disoriented, dizziness, or nausea. Who cares with the terminology?
Those who care about possible physical discomfort would likely care about the terminology. Dizziness and disorientation are not associated with physical discomfort of any somewhat significant degree, whereas headache and nausea are kinds of physical discomfort that is significant enough for rising concerns.
You can lose consciousness quickly, but it's not an alternative to N or the like.
I'd rather prefer gas asphyxiation to N. At least, I know exactly what to expect from the former, while N could have its own bunch of underreported side effects. How many people did actually tell what they felt shortly before LOC from N overdose? Note that if you lose consciousness and regain it hours later, your memories about the pre-LOC experience can be lost (similarly to how you can forget any dreams that you see right after falling asleep), which makes reliable reports about the absence of discomfort shortly before LOC nearly impossible. Gas asphyxiation is better in this regard, since it lets you regain consciousness quickly enough, so your pre-LOC perceptions have more chances to be preserved in your memory, allowing you to describe them in detail.
 
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S

sm1the

Student
Sep 18, 2022
159
Taking off regulators while gas is flowing(valve open) is quite dangerous .
Be careful.
Yeah, I also suspect it's the O2 in our lungs that's why we didn't CTB.

I had SI because I didn't want to CTB today. Besides, I was more in the 'dip my toes in' kind of mindset – I just wanted to get a taste of what it was like. Also, I haven't finished writing my letters/instructions yet and calling my friends up, so I didn't want to do it today. I'm convinced that this method is fatal if things go according to plan and I'll probably use it next month.

I think that the euphoric experience that some people claim is only possible if you set the Nitrogen gas at a low rate. Then, maybe, it's like a gradual driftoff. That said, I don't think the method is intended to be a gradual driftoff. I think the goal is to lose consciousness rapidly and CTB.

All in all, I think the experience was akin to taking too much Cannabis edibiles. You get a raging headache (maybe not raging but still strong) and feel groggily disoriented/dizzy.

Additionally, I felt that all these sensations just hit me instantly. Like I scrunched all the air out of the exit bag, pulled the bag down, inflated the bag, and breathed normally. Suddenly, a wave of side effects just came rushing all at once. After removing the bag, I was still disoriented for at least a good hour. I was so disoriented that after immediately removing the bag, I even forgot to turn the regulator off and close the cylinder valve before unscrewing the regulator from the cylinder. That led to a bunch of Nitrogen gas spewing out of the cylinder valve. Luckily, I didn't completely unscrew the regulator from the cylinder valve and managed to turn off the cylinder in time.
 
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sm1the

Student
Sep 18, 2022
159
I think, dizziness and headache are different things. I'm not a native English speaker though.

I never tried to consume cannabis. In a few tests with asphyxiation by nitrous, the symptoms occurred in the following order:
  1. high-pitched ringing in the ears, clouding of consciousness (or the sense of impending fainting);
  2. blurriness and dimness of vision;
  3. weakness, loss of coordination, wind-like noise in the ears, increased respiratory demand;
  4. numbness in the face and lips (pretty similar to what can be produced by lidocaine), slight tension in the head (without headache), decrease of noises in the ears;
  5. profound numbness in the whole body, loss of the sense of gravity;
  6. tingling sensations in the face and lips, palms and fingers of both hands, near-unconsciousness;
  7. unconsciousness.

Dizziness seems synonymical to clouding of consciousness, and disorientation comes from it.

I remember nausea described as a rare aftereffect of brief acute hypoxia or a more frequent effect that can take place during or after prolonged hypoxia, but I've never seen it mentioned as happening during brief acute hypoxia caused by gas asphyxiation. You seem to be the first person who reports nausea occurring so quickly.

This is what happens when the time of useful consciousness ends.

I think, clouding of consciousness is what everyone gets.
Ringing is a frequent symptom, but it may be absent for some people.
In case of brief acute hypoxia, nausea is a rare symptom that appears as an aftereffect.
Nausea possible with N2 for ppl who have GERD.
Also ppl with poor tone in eosaphageal sphincter ?.
exactly why I'm using EM with N2.

Also using heartburn meds.

I'm also using meds to help with migraines/headaches(I have severe migraines).

(If you dont already get headaches normally)doesn't high co2 cause headaches?.

I have not heard of n2 being uncomfortable on SaSu except for a couple of ppl who have quite unreasonable expectations in my opinion.Ppl in considerable pain dont mind a little dizziness or light headedness I've found(from reading the forum).

I was fully planning for N20 a couple of months ago,then found N2O can expand spaces between lungs in COPD ppl(I forget the exact area of the lungs),N2 doesn't do this apparently.
 
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