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Suizident

New Member
Aug 7, 2025
1
Hello,

Manuals on dying by helium recommend the use of a homemade exit bag (e.g., in Jessica Dueber's manual, see [1]).

Regardless of how you position yourself physically when committing suicide, it seems to me that there is a risk that the tube or the exit bag will somehow slip off when you lose consciousness and your muscles become limp.

The procedure recommended by Dueber of sitting in an ear chair, which is supposed to prevent slipping sideways, does not seem very reliable to me.


I came across an interesting variation in the press coverage:

A man built something for his parents that connects an oxygen mask to a helium bottle [2]. So, instead of wearing an exit bag, an oxygen mask is worn for suicide. Instead of oxygen, however, it supplies the user with helium. If the connection between the oxygen cylinder and the helium cylinder is well made, slipping of the helium supply, interruption of the helium supply or even the entry of room air into the oxygen mask should be almost certainly prevented.

Another advantage should be that one can die while lying down.


This raises the question of how such a connection between the oxygen mask and the helium cylinder can be made stable and reliable. The magazine article I found [2] only mentions something ominous about a "device". There is only a vague reference to a "device" that connects the oxygen mask and helium cylinder to each other.


I would assume a pressure of 14.5 PSI.

I wonder if it would be sufficient to simply connect the two hoses with (thick) aluminum tape. In addition to the relatively thin aluminum tape, which tears easily, there is also the slightly thicker (e.g., aluminium of Tesa brand), which in my experience is quite stable [3].

What do you think of my idea with the aluminum tape, or does anyone have a better idea?

The connection has to be almost 100% reliable.


Best regards,
Suizident



Sources:

[1]

[2]

[3]
 
locked*n*loaded

locked*n*loaded

Archangel
Apr 15, 2022
9,082
2 hoses? You mean one from tank and one from mask? Just use a double ended hose "barb" and clamps to connect the 2 hoses.
 
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SoulWantsHome

Member
Aug 6, 2025
5
Hey.

I had the same idea of using an oxygen-mask instead of an "exit-bag". I would have preferred using a proper, full-faced diving-mask (to best ensure a airtight seal, as well as to best ensure the removal of carbon-dioxide), but those are very expensive.

Anyway:
From the pictures I've seen of certain gas-regulators for gas-tanks, which are sold on places like "Amazon.com"; it seems that some of the gas-regulators come with different types of optional connectors in the package, which can be attached to the gas-regulator.

And in the pictures, it seems that 1 of those optional connectors, may fit quite well with the tube of an oxygen-mask. (And that would thereby mean that you wouldn't need to tape the tube onto the gas-regulator; or at the very least, that you would only need a small amount of tape to fit the tube onto the gas-regulator.)



Personally though, I bought the "Max Dog Nitrogen Kit" years ago (which is a kit that consists of a gas-regulator that is set at 15 litres per minute, and that has a connector that's specifically designed for oxygen-mask-tubes and similar tubes), as well as a few oxygen-masks of different sizes.

However, despite that the oxygen-mask will be sealed airtight with tape around my face; I'm still worried about the possibility of sucking oxygen into the oxygen-mask, every time I breath in (as this closes the valves of the oxygen-mask - but at the same time, it might suck a tiny bit of oxygen into the oxygen-mask, right before the valves close).

And this worry of mine, is the primary reason why I recently made an account on this forum, as I fear using this suicide-method, until I'm sure of how safe it is (in terms of achieving a successful suicide).



But if this method works flawlessly, then it's simply the ideal suicide-method - as it's both cheap, readily available, reliable, quick, painless and portable (as it all fits in a large backpack, including a 5 litre nitrogen-gas-tank).

And in addition to all of that, this suicide-method allows you to die in whatever position you want (for example, sitting or lying - although lying would obviously be preferable, in most cases); and it even leaves behind a good-looking/non-disfigured corpse, that allows for an open coffin at the funeral.

This suicide-method simply has everything that a typical, suicidal person would want from a suicide-method.



PS:

Nitrogen is an even safer gas to use for suicide-purposes, than helium is. This is because our bodies are even more used to nitrogen-gas than helium-gas (although our bodies are very used to both of these gasses, of course) - which is because there's way, way more nitrogen-gas in the natural air all around us, than there is helium-gas in the natural air all around us.

So, if you can, you should use nitrogen-gas instead of helium-gas (although both gasses work well for suicide-purposes, of course - as our bodies are very used to both of these gasses).



PPS:

I've seen several incorrect assumptions/conclusions from other users on this forum (as well as from the administrators themselves, in terms of some of the forum-rules being completely braindead, unreasonable and incorrect), regarding several things.

2 quick examples:

1) A user who claimed that the perfect suicide-method "doesn't exist" - which is incorrect, as nitrogen-hypoxia actually IS the perfect suicide-method, if you have the right equipment for it.​

2) A user who thought that it takes a very long time to die from hypoxia - which is incorrect, as you lose consciousness only after a few seconds (I think it's after about 15 seconds, if I remember correctly), and you actually die after about 1 minute. Any longer exposure to hypoxia after that minute has passed, is just to be sure that you remain dead.​

This is the reason why people don't actually need many litres of helium-gas or nitrogen-gas to kill themselves via hypoxia.

(Even the suicide-kits that used to be sold in the U.S.A. or Australia, only contained 2-litre-tanks or 3-litre-tanks of nitrogen-gas or helium-gas, for this very reason. Albeit I don't remember exactly if the tanks were 2 litres or 3 litres in size. But I definitely remember that they were less than 5 litres in size - which is why I myself bought a 5 litre nitrogen-gas-tank, just to be on the safe side.)​
 
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