On Fri, 18 Jun 2010 22:17:27 -0400, BQ340 wrote:
On 6/18/2010 9:58 PM, Some Guy wrote:
Is there any difference between a tank of welding oxygen vs medical
oxygen as far as purity, concentration, hazardous impurities, etc, that
would render welding oxygen insufficient (or even dangerous) for helping
to supplement breathing / respiration ?

Nope, they are the same. I see the paramedics at the welding supply
store all the time, getting their bottles filled from the same rack mine
are.

They *can* be the same depending on the store. Welding grade isn't safe
for medical use. Stores often stock only medical grade instead of
maintaining multiple grades.