I think so but it might smell pretty bad especially if it has mercaptans
I tried to inhale propane-butane mix from an air duster through the mouth, and it was bearable for me.
yea ive been looking and apparentlt people huff this stuff
And they do this for recreational purposes without intention to die, that suggests that inhaling odored alkanes ain't very unpleasant for them. Otherwise such gases wouldn't be so attractive to sniffers in the first place.
Also saw a story of a kid that went into cardiac arrest while doing it.
If you displace oxygen in your lungs with butane quickly, you most likely pass out before cardiac arrest.
there's just no easy way, is there?
It's possible to fill an initially empty 50 - 100L bag with propane/butane/isobutane. Since propane, butane, and isobutane are noticeably heavier than air, the bag may be turned its opening side up and then opened shortly for putting the head inside it. Once the head is placed inside, the bag should be quickly sealed with something like duct tape. Inhaling the gas should be avoided before sealing is done completely and lying position is taken, so the bag wouldn't be damaged due to falling. When sealing is done and lying position is taken, breathing may be resumed. If everything is done well, passing out and dying should happen in less than 1 minute and less than 10 minutes correspondingly.