Carbon Monoxide Experience Share

[tymiaomioa]

Not sure if anyone here has posted about carbon monoxide before. I tried it myself twice, so I wanted to write a more detailed version. This is just my personal take plus what I summarized with AI about why it failed. Quick conclusion first: if you can find a truly perfect small sealed space, CO is a painless CTB method.

The setup sounds simple — sealed room, 5kg charcoal, alcohol blocks, booze, and sleeping pills. But how sealed does it really need to be? What if it's not fully sealed? Prep a space under 10 square meters. Check every corner for drafts (use tissue paper or smoke — ask AI for exact method). If there's zero airflow, ideal, success rate can hit 90-95%. If there are leaks, rate drops. Take a bathroom for example: inspect every single gap and seal them with silicone sealant, waterproof tape, or foam strips. If your walls are old and the whole place leaks air, better skip CO — no matter how many kilos of charcoal you burn, the concentration won't get high enough.

Here's what my two attempts felt like: First time in the bathroom with 3kg charcoal, took sleeping pills beforehand, passed out in about 3 minutes, woke up next day with a headache. Second time 10kg charcoal, passed out in 15 minutes, felt heart racing, next day headache again that eased with sleep. I didn't feel any real pain or vomiting — probably concentration wasn't high enough. But if you want to pass out fast and keep pain close to zero, I also discussed specific room positions with AI that help. That's all for now. If people are interested I'll keep writing the rest.、
I failed twice because European old houses have tons of gaps and holes everywhere. If you're in a modern sealed building, the airtightness would be way better. For sealing, skip the basic tape, cardboard, paper towels or plastic bags – go for proper stuff like silicone sealant, heavy-duty waterproof tape or foam strips if you can.

I used Weber briquettes and premium charcoal. The smoke when burning was actually tolerable, not too bad. For the charcoal layout: spread it out flat in a single or double layer, and put some easy-to-light stuff underneath so it burns fully and evenly. (There are YouTube videos on how to light charcoal with paper）

 

[GodChallengesMe]

I also failed the charcoal method and I think that quantity and layout of coals is more important than sealing the space 100%. You need proper containers for optimal layout of burned charcoals and quantity IMO should be 1 kg per cubic meter to saturate the air with CO. So, a typical small bathroom that is 6-7 cubic meters in volume will require at least 2 full chimney starters that is about 5 kilograms of charcoal and at least 2 proper containers to evenly distribute the burned charcoals for optimal emission of CO.

But the method without steady CO production is nevertheless a lottery so unless you generate steady state of CO from a system like a generator or from a gas heater by manipulating it, IMO relying on charcoals is not that safe if you 100% want to die.

 

[tymiaomioa]

I also failed the charcoal method and I think that quantity and layout of coals is more important than sealing the space 100%. You need proper containers for optimal layout of burned charcoals and quantity IMO should be 1 kg per cubic meter to saturate the air with CO. So, a typical small bathroom that is 6-7 cubic meters in volume will require at least 2 full chimney starters that is about 5 kilograms of charcoal and at least 2 proper containers to evenly distribute the burned charcoals for optimal emission of CO.

But the method without steady CO production is nevertheless a lottery so unless you generate steady state of CO from a system like a generator or from a gas heater by manipulating it, IMO relying on charcoals is not that safe if you 100% want to die.

Yeah, I think there are way too many variables with charcoal, it's super hard to hit that perfect setup, so I'm done with that method. For space choices I'd rank: car > 3-5 sqm small room > small bedroom/storage room > tent. My second try was in a 3 sqm bathroom with 3m ceiling, I burned 5kg charcoal using an outdoor fire pit and a smaller BBQ bucket. But I only taped cardboard over the vent and ignored all the other gaps and seams. Woke up the next day with a splitting headache, but nothing as bad as some posts where people ended up in the hospital. As for the generator thing, I'm not sure, I asked AI and it said in theory it could produce CO more steadily, but I don't have one. If I did it'd probably boost the success rate a lot and be less smoky..

 

[GodChallengesMe]

Yeah, I think there are way too many variables with charcoal, it's super hard to hit that perfect setup, so I'm done with that method. For space choices I'd rank: car > 3-5 sqm small room > small bedroom/storage room > tent. My second try was in a 3 sqm bathroom with 3m ceiling, I burned 5kg charcoal using an outdoor fire pit and a smaller BBQ bucket. But I only taped cardboard over the vent and ignored all the other gaps and seams. Woke up the next day with a splitting headache, but nothing as bad as some posts where people ended up in the hospital. As for the generator thing, I'm not sure, I asked AI and it said in theory it could produce CO more steadily, but I don't have one. If I did it'd probably boost the success rate a lot and be less smoky..

I'd say CO is the most peaceful method that is accessible but it needs to be done with a proper generating source.

 

[SMxj9]

I think that using a tent is too dangerous...

Do you think that you have some brain damage? Even a small damage?

 

[indecent]

Glad I found the site, but disappointed with how difficult this method is. I had hoped that leaving a car running in the garage was enough to cause toxic levels throughout the house! I had no idea it took so much research and work to make the appropriate environment.

 

[tymiaomioa]

About getting unconscious fast: Prep some booze (37.5-50% alcohol, around 500ml), sleeping pills, and anti-nausea or stomach meds if you need them. CO takes time to build up, and there might be smoke or that panicky feeling along the way. If you're only in light sleep, you could wake up mid-process with vomiting or a bad headache. So the idea is to get your brain into deep unconsciousness first.

Basically, once you're in the sealed room, tape up the door gaps, light the starter fuel, then follow the proper drinking and pill schedule (dosages vary by medication). Here's an example with what I have:

T+0: Light the charcoal and let it burn steadily.
T+0 to 5 minutes: Quickly drink 150-200ml of 37.5% alcohol, small sips to get used to the burn.
T+5 to 10 minutes: With the remaining booze, swallow all your alprazolam (at least 60-80 pills) and 10 tablets of quetiapine.
T+10 to 15 minutes: Finish the rest of the alcohol (aim for 300-400ml total or more) while taking the remaining 10 quetiapine tablets. By then your body should start feeling really dizzy and weak, and you'll naturally slump down.

About the posture: stay in a half-sitting position leaning against the wall, or sit on a low stool, with your head tilted slightly forward. This way, even if there's a bit of vomiting, the stuff won't easily flow back into your airway

I think that using a tent is too dangerous...

Do you think that you have some brain damage? Even a small damage?

I think some level of brain damage is pretty much inevitable with CO, but mine wasn't nearly as bad as what other people describe. For me, the next day was just this really intense headache that got better after some sleep, and then for the next few days my head felt kinda foggy. The after-effects depend on how deep the poisoning was — I obviously didn't get hit too hard because my daily life is completely normal

 

[kurgan]

Not sure if anyone here has posted about carbon monoxide before. I tried it myself twice, so I wanted to write a more detailed version. This is just my personal take plus what I summarized with AI about why it failed. Quick conclusion first: if you can find a truly perfect small sealed space, CO is a painless CTB method.

The setup sounds simple — sealed room, 5kg charcoal, alcohol blocks, booze, and sleeping pills. But how sealed does it really need to be? What if it's not fully sealed? Prep a space under 10 square meters. Check every corner for drafts (use tissue paper or smoke — ask AI for exact method). If there's zero airflow, ideal, success rate can hit 90-95%. If there are leaks, rate drops. Take a bathroom for example: inspect every single gap and seal them with silicone sealant, waterproof tape, or foam strips. If your walls are old and the whole place leaks air, better skip CO — no matter how many kilos of charcoal you burn, the concentration won't get high enough.

Here's what my two attempts felt like: First time in the bathroom with 3kg charcoal, took sleeping pills beforehand, passed out in about 3 minutes, woke up next day with a headache. Second time 10kg charcoal, passed out in 15 minutes, felt heart racing, next day headache again that eased with sleep. I didn't feel any real pain or vomiting — probably concentration wasn't high enough. But if you want to pass out fast and keep pain close to zero, I also discussed specific room positions with AI that help. That's all for now. If people are interested I'll keep writing the rest.、
I failed twice because European old houses have tons of gaps and holes everywhere. If you're in a modern sealed building, the airtightness would be way better. For sealing, skip the basic tape, cardboard, paper towels or plastic bags – go for proper stuff like silicone sealant, heavy-duty waterproof tape or foam strips if you can.

I used Weber briquettes and premium charcoal. The smoke when burning was actually tolerable, not too bad. For the charcoal layout: spread it out flat in a single or double layer, and put some easy-to-light stuff underneath so it burns fully and evenly. (There are YouTube videos on how to light charcoal with paper）

Ok, you pass out because your brain wasn't getting adequate oxygen. So where did the outdoor-equivalent supply of oxygen come from to reverse hypoxia and snap you back into consciousness?

 

[tymiaomioa]

I didn't really pass out from the lack of oxygen. It was more the combination of it being late at night, the sleeping pills, and a low level of CO, so I didn't need to wait for the concentration to get high enough to make me drowsy. I think I already mentioned why I woke up the next day ，the bathroom had a lot of drafty spots and vents that led outside, which diluted the carbon monoxide

 

[kurgan]

I didn't really pass out from the lack of oxygen. It was more the combination of it being late at night, the sleeping pills, and a low level of CO, so I didn't need to wait for the concentration to get high enough to make me drowsy. I think I already mentioned why I woke up the next day ，the bathroom had a lot of drafty spots and vents that led outside, which diluted the carbon monoxide

OK, cool. Essentially, your space was woefully inadequate. Schoolboy error that. Your second attempt, which was it? 10 kilos of charcoal or 5 kilos?