In Reply to: NO2=laughing gas+sulphur (inhale=headache!) (eom) posted by Tim Collins on May 16, 1999 at 23:03:49:
I know this thought has crossed a few peoples minds reading this thread. Remember that automotive grade NO2 and medical grade NO2 are very different. Please do not inhale the automotive stuff, it much less healthly than the fun stuff you dentist hooks you up with.
-Just looking out for my bimmer friends