Well, here is my little adventure with PC duster used as an inhalent. You should NOT ever inhale anything - it can cause instant death and with prolonged use brain and organ damage.
Now, I have done pot, schrooms, alcohol, and DXM in the past. I dislike DXM and alcohol - I suggest pot and schrooms to all.
Anways last night I was in my brothers room and got the idea to take his PC duster and inhale a bit of it. Just to test (and hope I didnt die), I let it spray for a second inhaling all of it. Instant Head Rush similar to an orgasim. WOW.
I talked with a few people on the net, and they all have done it and gave me some tips. I got a straw, and did several 'sessions' - about 3 hits each (take a hit, take air, hit, air, hit air).
It was the highest, most intense experience I have ever experienced. Sounds distort, vision distorts, extreme euphoria. Unbelievable.