Method Exit bag and inert gas megathread

[Skal]

Assume as well that blood in his mask is from pulmonary barotrauma.
Helium like all inert gases, doesnt react or damage tissue.
The only other issue that I can think of is that the pressure was high enough and filled the lungs.

OP here. I was also thinking that the bleeding in the inert gas method was pressure-related. But now that I've experienced it myself, I'm less convinced because I didn't feel any pain in my lungs. If my lungs had actually ruptured, I would've felt massive pain in my chest, but that didn't happen. Also the mask had no problem expelling excess air/gas when I tested it beforehand. That said, I'm still not sure what caused it.
Possibly:
- inflammation of lung tissue caused by rapid oxygen release.
- negative pressure (25L/min is not enough when breathing hard)
- just a massive nosebleed

Yep: https://www.hermantheshocker.com/15-cases-of-helium-suicides/

Also it looks like using an exit bag could still cause bleeding based on this site.

 

[devils~advocate]

Maybe it is a nose bleed from some sort of pressure.

I think that website shows people using bags that are taped, in what appears to be tightly around their necks.
Some of that could be post mortem bleeding regardless of how death occurred, which is common unfortunately.
I had no idea, but there appears to be a lot of explanation on the internet about this. Its not something I wanted to know about.

I think that right now, the only systems that I know will work are the exit bag hood system, EEBD and scba.
The main issue is if the system will function well while someone is unconscious.
Exit bag hood - works from many examples, even those that are lower in craftsmanship.
EEBD /scba are high in craftsmanship and are made to function if someone is unconscious.

Edit: I wanted to apologize, I dont mean to explain away your situation.
Im sorry that this has happened to you.

 

[Skal]

Maybe it is a nose bleed from some sort of pressure.

I think that website shows people using bags that are taped, in what appears to be tightly around their necks.
Some of that could be post mortem bleeding regardless of how death occurred, which is common unfortunately.
I had no idea, but there appears to be a lot of explanation on the internet about this. Its not something I wanted to know about.

I think that right now, the only systems that I know will work are the exit bag hood system, EEBD and scba.
The main issue is if the system will function well while someone is unconscious.
Exit bag hood - works from many examples, even those that are lower in craftsmanship.
EEBD /scba are high in craftsmanship and are made to function if someone is unconscious.

Edit: I wanted to apologize, I dont mean to explain away your situation.
Im sorry that this has happened to you.

Please don't worry, I didn't take it that way at all.
It was horrible but I've had worse, kidney stones were much worse (and they lasted 3 months)
Next time I'm going to go with the standard exit bag and see what happens.

 

[devils~advocate]

Please don't worry, I didn't take it that way at all.
It was horrible but I've had worse, kidney stones were much worse (and they lasted 3 months)
Next time I'm going to go with the standard exit bag and see what happens.

Well i hope it was just a nose bleed and nothing more. Im not sure if you can tell or not the source.

I would say to practice with a cylinder of regular air and see what it does, in whatever system is used. There are so many variables, that using an air cylinder to test the system would be helpful to finding any issues.

I have practiced with a compressed cylinder filled with regular air to get the feel of the system I have.. This is in regards to a SCBA setup.
But I just have not practiced using the system while unconscious.
Im sure it would work fine, but Im afraid to do this, since the mask is a lot tighter. Even though they are used for saving unconscious people (i.e. like in a fire).

There are positive pressure scba systems out there. I have found and attained one off of the big international retail website.
It is composed of the mask and demand valve with hose. A regulator of some kind is needed to finish the system.
These systems of the regulator and demand valve make up the dual stage regulator system.

 

[Skal]

Well i hope it was just a nose bleed and nothing more. Im not sure if you can tell or not the source.

I would say to practice with a cylinder of regular air and see what it does, in whatever system is used. There are so many variables, that using an air cylinder to test the system would be helpful to finding any issues.

I have practiced with a compressed cylinder filled with regular air to get the feel of the system I have.. This is in regards to a SCBA setup.
But I just have not practiced using the system while unconscious.
Im sure it would work fine, but Im afraid to do this, since the mask is a lot tighter. Even though they are used for saving unconscious people (i.e. like in a fire).

There are positive pressure scba systems out there. I have found and attained one off of the big international retail website.
It is composed of the mask and demand valve with hose. A regulator of some kind is needed to finish the system.
These systems of the regulator and demand valve make up the dual stage regulator system.

May I ask what kind of practice you did?
For me, I used a septic air blower to send air to the mask at 23L/min. I tried breathing hard while wearing it and also sleeping for hours, and had no problems at that point (apart from my nose and mouth drying out from the constant airflow from the blower).