In article ,
Steve Barker wrote:
On 6/18/2010 8:58 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 ?

it's the same.

Ummm..... no, it's not. Read the other responses in this thread from people
who actually know the difference.