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windowinstaller

Student
Nov 19, 2025
103
i was getting high by huffing helium straight from a plastic ballon and then i realized that if i make sure my nose can get air in or out and then i breathe in helium untill i start to feel off then i put duct tape over my mouth then i would have just passed out and never woken up. it would only have taken 15 seconds from my first breath of helium till i was unconcious. you need to breathe in the helium by making a small hole and then putting a straw through the whole quickly and then pinching off the ballon so air cant get inside as oxygen gets converted into co2 in your body which hurts your lungs. then you must take a breath in through your moth and exhale through your nose untill you feel funny from lack of oxygen. then immediately put duct tape over your mouth and keep on wrapping it around and around untill you pass out. unconcousness happens within 20 seconds amd ypur too high to care for the last 5 seconds.
 
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tung tung sahur

tung tung sahur

Member
May 5, 2025
29
I don't understand, this way you can still breathe from your nose so how one can die from this?
 
Last edited:
tung tung sahur

tung tung sahur

Member
May 5, 2025
29
anyway i've read that balloon helium is not pure enough for ctb
 
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C

carfemtanyl

Student
Nov 18, 2025
138
balloon helium contains extra oxygen so children don't end up suffocating themselves
you will pass out if you breath it but you won't die
 
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E

eternalpace

Student
Oct 18, 2025
197
As others have mentioned, balloon helium is not the right concentration to have a fatal effect. You might have a short-term blackout, if anything... but inhaling it is not a method that will prove fatal.
 
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TheEmptyVoid

TheEmptyVoid

Specialist
Jun 18, 2025
352
As others have mentioned, balloon helium is not the right concentration to have a fatal effect. You might have a short-term blackout, if anything... but inhaling it is not a method that will prove fatal.
I looked at the balloon time helium tank and it said (20% air NOT oxygen, meaning that 20% air has about 4% oxygen by volume and 80% helium) unless they miss said oxygen and thought about air (being) oxygen.
 
D

DeathSweetDeath

Warlock
Nov 12, 2025
781
I looked at the balloon time helium tank and it said (20% air NOT oxygen, meaning that 20% air has about 4% oxygen by volume and 80% helium) unless they miss said oxygen and thought about air (being) oxygen.
Lol don't waste your time looking at balloon time tanks. The only thing they work for anymore is filling balloons. Helium for our purposes is easily found at welding supply shops and industrial gas suppliers.
 
J

Jello Biafra

Arcanist
Sep 9, 2024
476
Nitrous Oxide, or N20, would be a much better solution. It's cheap and easy to buy on Amazon.
 
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M

MidnightCrypt

Member
Oct 31, 2025
27
If it works it should be fairly painless.
 
NegevChina

NegevChina

I've done the best I could
Sep 5, 2024
623
i was getting high by huffing helium straight from a plastic ballon and then i realized that if i make sure my nose can get air in or out and then i breathe in helium untill i start to feel off then i put duct tape over my mouth then i would have just passed out and never woken up. it would only have taken 15 seconds from my first breath of helium till i was unconcious. you need to breathe in the helium by making a small hole and then putting a straw through the whole quickly and then pinching off the ballon so air cant get inside as oxygen gets converted into co2 in your body which hurts your lungs. then you must take a breath in through your moth and exhale through your nose untill you feel funny from lack of oxygen. then immediately put duct tape over your mouth and keep on wrapping it around and around untill you pass out. unconcousness happens within 20 seconds amd ypur too high to care for the last 5 seconds.
Even if you do pass out from the Helium and block air by taping mouth and nose, the CO2 levels will accumulate in your lungs and wake you up with a panic attak. Not a reliable method.
 
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Jello Biafra

Arcanist
Sep 9, 2024
476
Even if you do pass out from the Helium and block air by taping mouth and nose, the CO2 levels will accumulate in your lungs and wake you up with a panic attak. Not a reliable method.

If you lose consciousness from cerebral hypoxia, this is implying the brain does not have enough fuel (oxygen + glucose) to function properly, and unless that fuel is somewhat restored, the brain is not capable of reacting to reflexive responses like hypercapnia from excessive CO2.

In my opinion, this is why N2O is a much better option. Nitrogen is expensive and it's difficult to find helium that doesn't have oxygen added - it would need to be obtained from a commercial supplier - in the US at least.

Only a small percentage of ingested N2O is actually absorbed - the rest gets moved to the lungs to be exhaled. This allows for a much simpler and less error prone closed system without needing to hassle with a continuous flow setup. If you simply fill a small trash bag with N2O, then seal it around the neck, that's all you need. N2O interferes with the blood's ability to carry oxygen, which causes cerebral hypoxia. It's cheap, painless, and reliable.
 
NegevChina

NegevChina

I've done the best I could
Sep 5, 2024
623
If you lose consciousness from cerebral hypoxia, this is implying the brain does not have enough fuel (oxygen + glucose) to function properly, and unless that fuel is somewhat restored, the brain is not capable of reacting to reflexive responses like hypercapnia from excessive CO2.

In my opinion, this is why N2O is a much better option. Nitrogen is expensive and it's difficult to find helium that doesn't have oxygen added - it would need to be obtained from a commercial supplier - in the US at least.

Only a small percentage of ingested N2O is actually absorbed - the rest gets moved to the lungs to be exhaled. This allows for a much simpler and less error prone closed system without needing to hassle with a continuous flow setup. If you simply fill a small trash bag with N2O, then seal it around the neck, that's all you need. N2O interferes with the blood's ability to carry oxygen, which causes cerebral hypoxia. It's cheap, painless, and reliable.
The oxygen level after los of consciosness is sure to restore even if you dont breath. The reason is your whole blood content is saturated with Oxigen except for the small amount of blood that went from your lungs to your heart and straight to your brain. While you stopped breathing, the lungs no more exhale oxygen + CO2 and replace it with hellium, and the rest of the blood circulated in your body pumped from the heart to the brain and rest of your body that was not in your brain still has enough Oxygen to get you back conscious. Its just like a free diver can last a few minutes with out breathing att all. His dive begins with his blood circulation saturated with oxygen that depleats gradually.
 
J

Jello Biafra

Arcanist
Sep 9, 2024
476
The oxygen level after los of consciosness is sure to restore even if you dont breath. The reason is your whole blood content is saturated with Oxigen except for the small amount of blood that went from your lungs to your heart and straight to your brain. While you stopped breathing, the lungs no more exhale oxygen + CO2 and replace it with hellium, and the rest of the blood circulated in your body pumped from the heart to the brain and rest of your body that was not in your brain still has enough Oxygen to get you back conscious. Its just like a free diver can last a few minutes with out breathing att all. His dive begins with his blood circulation saturated with oxygen that depleats gradually.

Right, those emergency oxygen reserves in the body go to preserve the death of brain cells - it's not enough to restore consciousness. It's a last ditch effort in the event that regular oxygen levels are restored.

I am aware of the mechanisms involved with shallow water blackouts. Free divers who lose consciousness I've never seen regain consciousness on there own - they only regain consciousness when oxygen is reintroduced in to their system via cpr or breathing on the surface.

I'm not saying you are wrong, only that several members here have been over this point - I'll see if I can find some links for you. Do you have a source that states once cerebral hypoxia is induced that consciousness is restored when the deprivation of oxygen that induced loc is maintained and not restored?

If this is the case, why are there so many accidental inhalant deaths where people soak a rag with an asphyxiant or ether or something, and accidentally die with a closed bag over their head? Why don't they just wake up and tear the bag off? There are also case reports on the same thing with N2O - people who aren't trying to ctb (although those exist as well - especially with dentists who ctb) accidentally die because they are doing the same exact thing - filling a bag with N2O, closing it, passing out, then asphyxiating. Also autoerotic accidental deaths. Hangings as well - I've never seen someone hang, lose consciousness, then regain consciousness. Once they are out, it's over.

Perhaps what you are saying is that theoretically it's possible, but the probability is very low?
 
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