Method Exit Bag co2 buildup

[Parasitism]

I've been searching through inert gas/exit bag threads and I can't find a definitive answer to some questions that I have.

If I'm using nitrogen and a plastic bag, how loose does the drawstring that seals the bag around my neck need to be?

I understand that if the Co2 build-up from exhaling builds up too much then it can induce a panic response and wake me up. Do I have the drawstring loose enough so that the bag is not fully touching my neck?

Thanks

 

[SomewhereAlongThe]

I've read that 2 fingers should fit perpendicular to your neck. That it should be snug and not tight.

What I've done is focused on all the aspects involved, like how there's going to be a gap where the tubing is, and when the exit bag crinkles if you put it up snugly against your skin on your hand for example, you can see there are some gaps there because of the crinkles. So I factor this in when tightening the cord on my exit bag. I tighten it so that 2 fingers against my neck can fit underneath the drawstring, and then I like to get a feel of the drawstring, is it tight against my fingers? I even move my fingers along the hem of my exit bag and judge rather it's too loose or too tight. If it's not touching your neck, then gas will escape very quickly, it should be snug against your neck.

 

[DeusVult]

You're supposed to be pumping in quite a lot of gas, it should be constantly flushing away any CO2 and Oxygen, and the bag will naturally expand like a balloon. You should use an elastic cord to tie the bag, and it will expand itself as needed by the flow of gas. Depending on how you sown it, you should be able to adjust the length easily at any time, and play around with it.

 

[Intoxicated]

I understand that if the Co2 build-up from exhaling builds up too much then it can induce a panic response and wake me up.

I've never seen any study which would support the theory that CO2 can make you awake after loss of consciousness occured due to insufficient blood oxygen saturation. Some literature on suicides with plastic bags mentions quite the opposite point of view - that excess of carbon dioxide can contribute to inducing LOC.

I can imagine that a possible negative impact of CO2 on CTB via ventilated exit bag might be related to the ability of this gas to stimulate respiration, particularly to the point when the flow rate of the inert gas coming from the tube into the bag becomes too low compared to the demands of increased respiration, so a large amount of air could be captured from the ambient atmosphere. This scenario looks more realistic for me than bringing consciousness as a direct effect of CO2 on the brain.

 

[locked*n*loaded]

This is why some people first test their bag using O2 instead of going right to N2 - to make sure the elastic is set to the correct tension around the neck to allow the escape of CO2.

 

[Ariel1]

Why can't you just get a big enough bag to fit over your head, tie a rope around your neck with a little bit of room for the nitrogen to flow in and let it fill until you pass out? I don't understand why it has to be elaborately constructed?

 

[Alreadylate]

yeah I think the same

 

[J&L383]

I think it would have to be a very large bag, because the flow of nitrogen has to remain long enough for death to occur. 15 L per minute times I don't know how many minutes they recommend is something that most people don't have unless you have a weather balloon?

 

[Pouplard]

To answer SomewhereAlongThe's question about determining the correct level of bag tightening on the neck, I share my personal experience with you, hoping to be understandable, as English is not my mother's angel.
I made a first exit bag with a drawstring closure, as Betty had indicated. Setting it up and adjusting the tension just right around the neck is a process that may be difficult to perform calmly at the right time... So I made a second one, tightened with an elastic band that's just the length of my neck when not stretched. This allows the bag to be put on my head and held securely in place at the forehead to inflate it, then quickly lowered to the neck, once inflated, to tighten it with just the right amount of tension around the neck. You can easily fit two fingers between the bag and your neck, and a test with a flow of compressed air at 1.5 bars from the entire assembly allows you to verify that it's possible to breathe without difficulty without the bag, inflated by the airflow, overinflating when you exhale or deflating and pressing against your face when you inhale. You can clearly feel the slight airflow on your neck caused by the compressor's airflow, and you don't feel any discomfort. This allowed me to verify that my device will be operational with a nitrogen flow of 15 liters per minute on the day I want to use it to leave. So, everything is ready for that day: I have the bag, the nitrogen cylinder, the regulator, and the necessary equipment.
Only one thing worries me : what state will I be in when I'm found? To avoid causing too much shock and out of dignity, should I plan to compensate for some physiological relaxation, for example by putting on a diaper, followed by a trip to the bathroom before the final steps?