Method Asphyxiation by helium tanks in car

[PleaseLetMeMakeAnAc]

You can buy it for ~25 bucks for 5 cubic foot at a lot of common stores too; No problem at all sourcing it. I plan to do this while zonked on some DXM, courtesy of robotablets. One final trip. It should also make panic a non-issue cause I think I could sit through a tornado on that shit without flinching.

My plan is to prep my car tomorrow morning with some air exhaust holes in the floor & some basic sealing with tape on the windows & cracks. Reasoning being that the helium should fill the cabin from the top down & force out the heavier gasses. Head to the store & grab the helium tanks. They come with balloons, I plan to fill those with just plain air & use them to reduce the total cubic footage of circulating air in my cabin.

Then wait for nightfall, get a nice pizza from that nice place down the road, & drive out somewhere peaceful. Bring my headphones put on a good yt playlist, crank the AC on recirculate, take my pills, open the valves on the tanks when I start to peak, and lay back & enjoy.

If I manage to still be conscious after a certain point, I will plug the floor holes up with some wine corks I have. This as a backup hoping the AC air flow won't drain the helium out somehow before I pass.

I think this should manage to be more pleasant than the other setups I've seen for asphyxiation; Since you aren't confined to a mask strapped to some tank. And you don't have to source all that mess; It's just basic helium tanks you can buy cheap anywhere

I wanted to share for discussion & make sure there are no holes in my reasoning/methods here. My car's cabin is fairly small & I figure making the cubic footage even smaller with air balloons should make 2, 5 cubic feet tanks of helium plenty. Open to feedback here

 

[Kapsyl]

I wanted to share for discussion & make sure there are no holes in my reasoning/methods here. My car's cabin is fairly small & I figure making the cubic footage even smaller with air balloons should make 2, 5 cubic feet tanks of helium plenty. Open to feedback here

Welcome to the forum! I see you have put quite a bit of thought about this, unfortunately I'm uncertain it will work.

Is it ordinary ballon helium? Some manufacturers have lowered the helium purity especially in USA, the biggest and popular brand is only 80% helium (Ballon time). Some claim 99% helium but this is a figure I don't really trust since consumers can't really test it.

You're thinking right by displacing the car volume with balloons but it's still a relatively big area to successfully exchange from air to 0-5% helium atmosphere. How many tanks are you're going to buy? Nobody has really tried this what I know of but I would figure you would need something like 5x the amount of helium than the volume of the car. Remember you have to remove all the existing air inside the car then maintaining that atmosphere for at least 15 min. For reference it takes around 10 min for the Sarco pod until unconsciousness and thats with a significantly lower volume and an air tighter vessel to begin with.

Ordinary ballon canisters doesn't have any easy way to determine the amount of flow, if you just open the valves at a rough estimate the gas may run out before the inner atmosphere is below 5%. You would need a flowmeter and a huge supply of continuous helium to ensure the atmosphere keeps at 5% or lower. Remember helium isn't toxic, its lethality comes from replacing the oxygen keeping the body from its vital components to live.

You mention 5 cubic foot helium canisters, that's only 140 liters each, for reference I have a 1000 liter supply of nitrogen for my enclosed mask setup which is only filling a fraction of the area than you're attempting.

There's a good reason why we choose enclosed spaces to fill with inert gas, because it's much easier to ensure no air is getting in. It takes around 12-15 min to ctb in a near 0% inert environment, if that figure is closer to 5% it takes longer, 6% even longer etc. This is normally not a problem with small enclosures but with a car, 10 min extra could mean another 1000 liters of helium to simply keep out the air and ensuring low % atmosphere inside the car.

You mention running the AC while attempting this, in my opinion it would be better to not circulate the "air" you want the helium to rise to head level and stay there. Blowing around the air would mix it needing even more helium than not doing that. Taping any vents and doors were air might getting in would be wise.

If I were personally to attempt this I would get a supply of at least 5000 liters or more of helium, a regulator and flowmeter to control the amount of helium. Tape the car everywhere air might getting in, and fix my body so I can't fall down and keep my head leveled as high as possible since there the helium will form.

My bleak prediction of your attempt with two 5 cubic cylinders is that nothing is really going to happen. It's simply too little helium to effectively push out all the air inside the car and keep it out for long enough to successfully ctb. What's probably going to happen is your going to wait for the helium to take affect but after 10 min the cylinder is going too run out and you will be disappointed. Even if your were to loose consciousness, you would wake up when the cylinder is empty.

These are my thoughts of your method, good luck!

 

[PleaseLetMeMakeAnAc]

Welcome to the forum! I see you have put quite a bit of thought about this, unfortunately I'm uncertain it will work.

Is it ordinary ballon helium? Some manufacturers have lowered the helium purity especially in USA, the biggest and popular brand is only 80% helium (Ballon time). Some claim 99% helium but this is a figure I don't really trust since consumers can't really test it.

You're thinking right by displacing the car volume with balloons but it's still a relatively big area to successfully exchange from air to 0-5% helium atmosphere. How many tanks are you're going to buy? Nobody has really tried this what I know of but I would figure you would need something like 5x the amount of helium than the volume of the car. Remember you have to remove all the existing air inside the car then maintaining that atmosphere for at least 15 min. For reference it takes around 10 min for the Sarco pod until unconsciousness and thats with a significantly lower volume and an air tighter vessel to begin with.

Ordinary ballon canisters doesn't have any easy way to determine the amount of flow, if you just open the valves at a rough estimate the gas may run out before the inner atmosphere is below 5%. You would need a flowmeter and a huge supply of continuous helium to ensure the atmosphere keeps at 5% or lower. Remember helium isn't toxic, its lethality comes from replacing the oxygen keeping the body from its vital components to live.

You mention 5 cubic foot helium canisters, that's only 140 liters each, for reference I have a 1000 liter supply of nitrogen for my enclosed mask setup which is only filling a fraction of the area than you're attempting.

There's a good reason why we choose enclosed spaces to fill with inert gas, because it's much easier to ensure no air is getting in. It takes around 12-15 min to ctb in a near 0% inert environment, if that figure is closer to 5% it takes longer, 6% even longer etc. This is normally not a problem with small enclosures but with a car, 10 min extra could mean another 1000 liters of helium to simply keep out the air and ensuring low % atmosphere inside the car.

You mention running the AC while attempting this, in my opinion it would be better to not circulate the "air" you want the helium to rise to head level and stay there. Blowing around the air would mix it needing even more helium than not doing that. Taping any vents and doors were air might getting in would be wise.

If I were personally to attempt this I would get a supply of at least 5000 liters or more of helium, a regulator and flowmeter to control the amount of helium. Tape the car everywhere air might getting in, and fix my body so I can't fall down and keep my head leveled as high as possible since there the helium will form.

My bleak prediction of your attempt with two 5 cubic cylinders is that nothing is really going to happen. It's simply too little helium to effectively push out all the air inside the car and keep it out for long enough to successfully ctb. What's probably going to happen is your going to wait for the helium to take affect but after 10 min the cylinder is going too run out and you will be disappointed. Even if your were to loose consciousness, you would wake up when the cylinder is empty.

These are my thoughts of your method, good luck!

I need 5x the volume of the car in helium? Please give details I'm confused on that. I have a very small cabin; It's an old single cab, tiny little thing. <20 cubic feet not couting displacment of seats or cargo. I was planning on getting 10-15 cubic ft of helium

Giving it some more thought after reading your thoughts, you are probably 100% right. I need to rethink this completely.

The tanks I saw are certified to be at least 85% helium. Multiple sources state that they are typically 90%+ in reality. I have a very accurate scale I could use to test the content by working backwards from the force of buoyancy; That seems extra though.

Now I'm thinking: what if I got a box, cut out the bottom, suspended over my seat via string & some adjustable hitch knots, placed it over my head, & filled the box with the hellium. Shouldn't this be like when you place a cup upside down in water and the air stays in place i.e. effectively the same as a closed system?

Then I could maintain it by having the two tanks barely open so that they last as long as possible. I could use a big box to minimize the effect of my breath forcing helium out. Could this make it possible to maintain low enough oxygen levels long enough to ctb you think?

I should mention I do have something else working in my favor; I have terrible lungs. Very damaged from past ctb attempts were I aspirated. I should be more much vulnerable to hypoxia than the average Joe if my knowledege there is right

 

[Kapsyl]

I need 5x the volume of the car in helium? Please give details I'm confused on that. I have a very small cabin; It's an old single cab, tiny little thing. <20 cubic feet not couting displacment of seats or cargo. I was planning on getting 10-15 cubic ft of helium

Giving it some more thought after reading your thoughts, you are probably 100% right. I need to rethink this completely.

The tanks I saw are certified to be at least 85% helium. Multiple sources state that they are typically 90%+ in reality. I have a very accurate scale I could use to test the content by working backwards from the force of buoyancy; That seems extra though.

Well as I said no one has really tried with a car so we have no references on how much is required. But as a car is not nearly airtight as something like a Sarco it's hard to calculate since we don't know how much air is getting ventilated or sipping out. If you only have 10-15 cubic ft of helium in a 20cubic feet car it wouldn't even be enough to push out the existing air inside the car nonetheless keeping it out. The helium isn't going to stay inside the car by itself, it needs to continuously be replaced to keep outside air getting in.

The pph advice that inert gases needs to be at least 97% but most would argue at least 99% pure to be effective. 85-90% pure isn't good enough, you might become unconscious but risk serious brain damage since the purity isn't enough to kill of the brain cells. Using low purity inert gases is highly risky and likely to fail, especially with low amounts of inert gas.

Now I'm thinking: what if I got a box, cut out the bottom, suspended over my seat via string & some adjustable hitch knots, placed it over my head, & filled the box with the hellium. Shouldn't this be like when you place a cup upside down in water and the air stays in place i.e. effectively the same as a closed system?

Then I could maintain it by having the two tanks barely open so that they last as long as possible. I could use a big box to minimize the effect of my breath forcing helium out. Could this make it possible to maintain low enough oxygen levels long enough to ctb you think?

Not sure, every time we take a breath a vacuum is formed which sucks in air. My fear is that you would suck in outside air underneath the box hindering you from becoming unconscious. If you would manage you typically breath at a slower and weaker rate, which could allow you to ctb but it's highly uncertain. What would happen to the box when you become unconscious? We typically fall over when unconscious so keeping the box leveled onto the head can be difficult. Cardboard boxes also aren't airtight. To repeat myself, to be able to ctb you have to be inside an atmosphere with less than 5% oxygen preferably 0-1% oxygen until you successfully ctb. If you use to little pressure the overpressure won't be enough to stop the air getting in, so using to little isn't good either.

It just sounds like a worse version of the exit bag.

I should mention I do have something else working in my favor; I have terrible lungs. Very damaged from past ctb attempts were I aspirated. I should be more much vulnerable to hypoxia than the average Joe if my knowledege there is right

I've read that exit bags aren't good for people with weak lungs, I don't really get why but it's something I've read have to come back to you on that.

In the meantime I highly suggest reading this tread —-> https://sanctioned-suicide.net/threads/exit-bag-and-inert-gas-megathread.8393/

 

[Praestat_Mori]

Welcome to the forum! A lot has been said already. This is how inert gas methods work (informational):

https://sanctioned-suicide.net/threads/exit-bag-and-inert-gas-megathread.8393/

https://sanctioned-suicide.net/threads/nitrogen-gas-with-eebd-hood-guide-inert-gas-method.122159/

https://sanctioned-suicide.net/threads/gasmonkey-setup-nitrogen-scba.115434/

 

[PleaseLetMeMakeAnAc]

Well as I said no one has really tried with a car so we have no references on how much is required. But as a car is not nearly airtight as something like a Sarco it's hard to calculate since we don't know how much air is getting ventilated or sipping out. If you only have 10-15 cubic ft of helium in a 20cubic feet car it wouldn't even be enough to push out the existing air inside the car nonetheless keeping it out. The helium isn't going to stay inside the car by itself, it needs to continuously be replaced to keep outside air getting in.

The pph advice that inert gases needs to be at least 97% but most would argue at least 99% pure to be effective. 85-90% pure isn't good enough, you might become unconscious but risk serious brain damage since the purity isn't enough to kill of the brain cells. Using low purity inert gases is highly risky and likely to fail, especially with low amounts of inert gas.



Not sure, every time we take a breath a vacuum is formed which sucks in air. My fear is that you would suck in outside air underneath the box hindering you from becoming unconscious. If you would manage you typically breath at a slower and weaker rate, which could allow you to ctb but it's highly uncertain. What would happen to the box when you become unconscious? We typically fall over when unconscious so keeping the box leveled onto the head can be difficult. Cardboard boxes also aren't airtight. To repeat myself, to be able to ctb you have to be inside an atmosphere with less than 5% oxygen preferably 0-1% oxygen until you successfully ctb. If you use to little pressure the overpressure won't be enough to stop the air getting in, so using to little isn't good either.

It just sounds like a worse version of the exit bag.



I've read that exit bags aren't good for people with weak lungs, I don't really get why but it's something I've read have to come back to you on that.

In the meantime I highly suggest reading this tread —-> https://sanctioned-suicide.net/threads/exit-bag-and-inert-gas-megathread.8393/

With the box I was gonna make it airtight with some garbage bags & have it rested behind my head while fully reclined in my seat using the strings to keep it from falling down & getting uncomfortable. I could work something out to make it fully airtight

I'm unfortunately both in a hurry & quite broke buying proper supplies is out of range for me.

I read the PPH & that thread. I didn't see precise numbers on purity. They vaguely mention available helium being at an unreliable purity.

This is probably a really, really stupid idea but what if I actively destroyed/removed the oxygen? Say through fire or some other chemical reaction? Would then using <97% be viable you think?

I don't necessary have to do it in my car. I could do some setup in my house.

I think I'll go ahead & buy and test the purity of a 5 cf helium tank and play by ear. It's the only peaceful option I know in my grasp; I feel I have to make it work somehow I don't wanna end things uncomfortably

I need to get out of here asap. Worst comes to worst I do have a gun, but I really don't want to use it

 

[PleaseLetMeMakeAnAc]

Doing some math, the tank I got says 80% Helium & 20% Air. Assuming they mean just normal air with an oxygen content of ~20%, then this formula should give the percent of oxygen

TotalOxygenPerecent = ((TotalCubicFeet * PercentAir) * PercentAirOxygen) / TotalCubicFeet

Assuming my math is right, that is 4% oxygen by volume. Warning: I am kinda bad at math

According to ChatGPT, anything <10% is immediate danger and 4% will cause near immediate unconsciousness & death within 6 minutes or less. Studies on this I've skimmed were pretty hard to parse, but ChatGPT's estimates seem to be about right given what I could understand

If this data & my conclusions are right, exposure to 80% helium should be enough to ctb effectively & peacefully so long as you can maintain it.

My new plan is to make essentially an airtight boxfort that I can mount ontop of my mattress with a volume of <10 cubic feet, drain the 15 cubic foot tank into it, and peacefully ctb.

I'll I use a box to give myself an area around my head & torso for comfort, then have an airtight plastic drap around down it that will create a pocket of helium that will stay stagnant around me as I lay down and breath it in.

More than that, I wonder if I could use fire to exhaust even that last 4% from it. Maybe have some little contration with a contained flame that I could place into the box with me & light to burn it all out? Gonna give it some good thought & make sure to take my time

 

[Jarni]

I think only @DeadManLiving have a viable plan with a car and gas (you could see his messages) (I'm not an expert, just saw some of his messages).

 

[J&L383]

Lots said already - helium in a car won't work. It's not a poisonous gas. (Even if you can find it in 100% concentration). But it might make you talk in a high voice for a while.