On Tue, 11 Jan 2011 17:23:15 -0800, Rich Grise
wrote:

wrote:
On Jan 11, 6:33Â*pm, Ignoramus29041 ignoramus29...@NOSPAM.
29041.invalid wrote:
can industrial welding oxygen be used to breathe. Long term effects
are of no importance whatsoever.

You do not want to breathe pure oxygen, but welding oxygen can be
substituted for medical oxygen.

I wonder what would happen if you mixed in a little argon.

Thanks,
Rich
Or a bit of helium.