Quote Originally Posted by David88vert
Don't try to smell automotive use N20. It is NOT the same as medical grade.
Don't they poison it so that you won't smell it? I know they poison rubbing alcohol so that people won't drink it. Well some people don't. My dad told me when he was a social worker at Grady (long time ago) that the bums would filter it through coffe filters and shirts or some shit and then drink it. Still terrible for you but alot safer.

BTW, I have nothing useful to contribute to this thread.