Method Exit bag and inert gas megathread

[gettingkindatired]

I've been studying the nitrogen method a bit, but it doesn't seem to be all that swift and pleasant for me.

I have tried out this experiment several times. I filled a big plastic bag with nitrogen. Then I started to inhale from the bag and exhale into the open air. I assumed this would cause a similar experience to a real attempt, without any risks of injury. After 60 seconds or so this was getting really unpleasant, but I didn't feel like I was losing conciousness.
(For comparison, I can draw a deep breath of air and hold it for 90 seconds with less distress.)

Any idea why I react in this way?
- I suppose some oxygen will seep into the bag and my lungs when I breathe, but it shouldn't be enough to keep me concious for this long.
- I don't believe my nitrogen is contaminated by carbon dioxide or anything else. I have bought two bottles from different suppliers, so getting deficient products twice would be very unlikely. And even if it was contaminated, my negative reaction should be instant, not a gradual increase.

 

[outrider567]

I've been studying the nitrogen method a bit, but it doesn't seem to be all that swift and pleasant for me.

I have tried out this experiment several times. I filled a big plastic bag with nitrogen. Then I started to inhale from the bag and exhale into the open air. I assumed this would cause a similar experience to a real attempt, without any risks of injury. After 60 seconds or so this was getting really unpleasant, but I didn't feel like I was losing conciousness.
(For comparison, I can draw a deep breath of air and hold it for 90 seconds with less distress.)

Any idea why I react in this way?
- I suppose some oxygen will seep into the bag and my lungs when I breathe, but it shouldn't be enough to keep me concious for this long.
- I don't believe my nitrogen is contaminated by carbon dioxide or anything else. I have bought two bottles from different suppliers, so getting deficient products twice would be very unlikely. And even if it was contaminated, my negative reaction should be instant, not a gradual increase.

You don't exhale into the open air, you exhale into the bag, that bag must be completely over your head, and get an oximeter to watch your Oxygen levels(ten second delay on actual readings don't forget)--An EEBD hood is more reliable, after just 5 breaths my Oxygen level dropped to 40(but took the hood off at 77)at 25 LPM