Help Inert gases: do you need a mask or could you just release it through the regulator in a car?

[KAZ-2Y5]

I was reading a story about an elderly man and his wife bought two nitrogen tanks and the regulators/flow, and fully opened the valves in their car but no mention of using masks like all the other fatalities/sui stories I read about.

I'm 113lb female 5'3" I'm very small.

40cf tank filled with nitrogen

Wondering if just doing that would work? I just don't want it to cause too much physical pain. I can take headaches or dizziness but I don't know if it'll work.

 

[Praestat_Mori]

You need a mask / exit bag. That's the only safe way to go.

 

[befree]

Possible options: SCUBA, SCBA, exit bag, EEBD hood, Rebreather

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