Questions about gas hypoxia induced suicide

[frjty1279]

I currently have formic and sulfuric acid, which I hope to mix together to create carbon monoxide; however, I am also considering helium and nitrogen induced hypoxia methods. Whenever I search anywhere online, I cannot find any legitimate answers on the nuances surrounding how each of these methods feels. If I can help it, I don't want my last memory to be having a headache or feeling nauseous before falling asleep. Ideally, I'd like for it to be just like when I go to bed at night, except not waking up in the morning obviously. Can anyone advise me on which gas induced hypoxia method has the fewest pre-death side effects? Thanks

 

[Notaname]

I have a nitrogen setup. I've tested it out and there was no headache, nausea, or any other negative feelings. My vision got fuzzy after about 10 seconds and I took the mask off. It's really peaceful. Nitrogen is pretty cheap aside from the tank which can be a little pricey. You'll want at least a 40 Cubic foot tank which will give you roughly 70 minutes of gas at a flow of 15 l/m. You need about 45 minutes for it to fully kill you. Argon regulators are cheaper to find, but argon has a different density than nitrogen, so if you're using an argon regulator with nitrogen your flow should be 12.6-13 l/m.