They do, just some people don't care and are happy enough to deal with that and get the high off it. I'm not sure it's a good high but y'know I guess whatever.
I feel like you can get better highs for cheaper, I don't really know why people choose to inhale that shit but they do.
If you want to get high off of a gas I'd say it's way way waaaaaY safer to just inhale nitrous oxide (whippits), It won't be the same high but it's probably better overall, can't say I've ever huffed canned air though so can't do a true comparison.
Just the stuff in canned air is so much worse for your body and brain.
What is that picture from. It reminds me of the movie Heavy Metal but I don't think it's from that.
Also if you've never seen that y'all owe it to yourselves.