TL;DR: Will I die from duster or get brain damage, what are the active chemicals in duster and is there anything in the duster specifically that makes it so potentially dangerous.

Does anyone have any experience or knowledge on the truth about keyboard duster? Any horrific stories or anything? I'm seeing people all over the shop abusing this stuff on the internet and some of the videos leave me a little worried to try it- don't get me wrong I'm no pussy I've inhaled bugspray, shot up .7g, huffed a 680g nitrous bottle to myself in one day, had 20 hits of acid at once, eaten a whole ounce of mushrooms, I'm not worried so much about the feeling of the high or not being able to handle it but I am worried it might become a habit if I like it and I have a suspicion on my n'th can of duster I might just drop dead.