Method Nitrous oxide as a method?

[sm1the]

So tilting your head parallel to the floor can counter gas leaking down.
The other concern is the boiling point for this gas is -88c !, use an insulated hose or let the gas in bag warm before use?.

So tilting your head parallel to the floor can counter gas leaking down,thanks.

The other concern is the boiling point for this gas is -88c !, I don't know if this is tolerable(instant frostbite to deal with if u fail)you can use an insulated hose or let the gas in bag warm before use I guess.
As far as bags go,LLDPE (not LDPE) is the material I chose for lowest gas permeation,tear resistance and accessibility(55x 62cm,50micron).

Is there anyway to tell if you got too much air in the bag(after sealing at neck)?.
Is it possible perhaps that if say after a certain time and u are still conscious it means you should consider that too much air entered and abort/start over?.
I could always pump gas while wearing the bag(sealed at neck with small diameter hose inserted at neck area and removed after filling) but having no experience with this gas I'm concerned about frostbite(if I fail)?.

 

[BullsDon'tFly]

Is there anyway to tell if you got too much air in the bag(after sealing at neck)?.
Is it possible perhaps that if say after a certain time and u are still conscious it means you should consider that too much air entered and abort/start over?.
I could always pump gas while wearing the bag(sealed at neck with small diameter hose inserted at neck area and removed after filling) but having no experience with this gas I'm concerned about frostbite(if I fail)?.

The larger the bag, the smaller any leak will affect it.

I don't want to make claims about maximum time required to lose consciousness.

I don't think you should worry about frostbite, no one using compressed gasses mentioned it as a danger. The gas inside the tank is at thermal equilibrium with the room (if I'm not mistaken), but it is contained at around 100x atmospheric pressure. When you let it out, pressure difference between the inert gas and normal air makes it expand and, thus, cool down, but the cooling isn't determined by its vapour point. But even if so, since this method requires to fill the bag before inhaling the gas, one can simply wait for the gas inside the bag to reach room temperature. I don't think it will be necessary tho.

 

[finallyhopeless]

A friend of a friend recently tried to ctb with nitrous, they ended up passed out in their room for multiple days before they were found and ultimately survived. However, the way they were laying cut off circulation to one of their legs which then had to be amputated. Be careful.

 

[Intoxicated]

Is there anyway to tell if you got too much air in the bag(after sealing at neck)?.
Is it possible perhaps that if say after a certain time and u are still conscious it means you should consider that too much air entered and abort/start over?.

Being conscious doesn't mean that you can use your hands to do something meaningful. The typical chain of events leading to hypoxic LOC is:

feeling normally -> reduced level of consciousness / lightheadedness / the sense of impending loss of consciousness (continues until full loss of consciousness) -> partial loss of voluntary control over many of your muscles -> full loss of voluntary control over your muscles -> full loss of consciousness.

Trying to unseal the bag after entering the state of lightheadedness may lead to inability to complete the unsealing due to loss of proper understanding of what you're doing and/or loss of proper control over your hands. Improper actions may lead to hypoxic injury without CTB. After the bag is sealed and breathing with nitrous has started, waiting no matter what seems to be the only safe option.

but having no experience with this gas I'm concerned about frostbite(if I fail)?.

If you're going to CTB in a place where the ambient temperature is about -10 °C or below, then thinking about frostbites could make sense.

 

[BullsDon'tFly]

A friend of a friend recently tried to ctb with nitrous, they ended up passed out in their room for multiple days before they were found and ultimately survived. However, the way they were laying cut off circulation to one of their legs which then had to be amputated. Be careful.

No brain damage from hypoxia but amputation for not sitting straight? One of the strangest outcomes ever. I feel sorry for him.

 

[sm1the]

Being conscious doesn't mean that you can use your hands to do something meaningful. The typical chain of events leading to hypoxic LOC is:

feeling normally -> reduced level of consciousness / lightheadedness / the sense of impending loss of consciousness (continues until full loss of consciousness) -> partial loss of voluntary control over many of your muscles -> full loss of voluntary control over your muscles -> full loss of consciousness.

Trying to unseal the bag after entering the state of lightheadedness may lead to inability to complete the unsealing due to loss of proper understanding of what you're doing and/or loss of proper control over your hands. Improper actions may lead to hypoxic injury without CTB. After the bag is sealed and breathing with nitrous has started, waiting no matter what seems to be the only safe option.

If you're going to CTB in a place where the ambient temperature is about -10 °C or below, then thinking about frostbites could make sense.

Thanks,those are good safety points in terms of avoiding permanent Injury if u fail.
I think I will pull the empty bag down to neck and use something tight and elasticated to semi-seal bag to neck(air to be squeezed out while putting the bag on or after elastic applied at neck),
hose(attached to cylinder, regulator)inserted at neck ,
fill(open the elastic/bag with finger a bit to purge any air with gas maybe?).
After 3/4 (?) full,pull out hose, I will use a reusable (edges are rounder)long zip tie .

How does this sound?.
Gas would be coming directly at me so I really hope it won't be sub-zero temperatures

The larger the bag, the smaller any leak will affect it.

I don't want to make claims about maximum time required to lose consciousness.

I don't think you should worry about frostbite, no one using compressed gasses mentioned it as a danger. The gas inside the tank is at thermal equilibrium with the room (if I'm not mistaken), but it is contained at around 100x atmospheric pressure. When you let it out, pressure difference between the inert gas and normal air makes it expand and, thus, cool down, but the cooling isn't determined by its vapour point. But even if so, since this method requires to fill the bag before inhaling the gas, one can simply wait for the gas inside the bag to reach room temperature. I don't think it will be necessary tho.

I have searched for details about this and there are many contradicting answers.
Ideally,I would think pumping n2o directly into the bag(sealed system,non-continuous gas) would minimize contamination, but there the freezing temperature concern is much more valid..

 

[sm1the]

Being conscious doesn't mean that you can use your hands to do something meaningful. The typical chain of events leading to hypoxic LOC is:

feeling normally -> reduced level of consciousness / lightheadedness / the sense of impending loss of consciousness (continues until full loss of consciousness) -> partial loss of voluntary control over many of your muscles -> full loss of voluntary control over your muscles -> full loss of consciousness.

Trying to unseal the bag after entering the state of lightheadedness may lead to inability to complete the unsealing due to loss of proper understanding of what you're doing and/or loss of proper control over your hands. Improper actions may lead to hypoxic injury without CTB. After the bag is sealed and breathing with nitrous has started, waiting no matter what seems to be the only safe option.

If you're going to CTB in a place where the ambient temperature is about -10 °C or below, then thinking about frostbites could make sense.

Hey how do u think this sounds?
pull the empty bag down to neck and use something tight and elasticated to semi-seal bag to neck(air to be squeezed out while putting the bag on or after elastic applied at neck),
hose(attached to cylinder, regulator)inserted at neck ,
fill(open the elastic/bag with finger a bit to purge/flush any air with gas (maybe?).
After 3/4 (?) full,pull out hose, I will use a reusable (edges are rounder in these)long zip tie .


Gas would be coming directly at me so I really hope it won't be sub-zero temperatures

 

[Intoxicated]

Hey how do u think this sounds?
pull the empty bag down to neck and use something tight and elasticated to semi-seal bag to neck(air to be squeezed out while putting the bag on or after elastic applied at neck),
hose(attached to cylinder, regulator)inserted at neck ,
fill(open the elastic/bag with finger a bit to purge/flush any air with gas (maybe?).
After 3/4 (?) full,pull out hose, I will use a reusable (edges are rounder in these)long zip tie .

That plan may require holding breath for the period of filling the bag and for the period of sealing it. If it's OK for you, then it could work.