thanks guys, i knew the output pressure was FAR too low to fill a cylinder. however i didnt consider the fact that shop compressors arent designed to hold thousands of psi. (meaning the compressors must supply more than the output, but not enough for this subject it would seem)
the internal pressures are somewhat higher than output pressures otherwise the compressor would turn on everytime i used an air tool, but again i didnt consider the limits of the holding tank, and single (sometimes double) stage restrictions.
...so for clarification, assuming 3 or 4 stage used compressor, you would run synthetic, and provided it was in serviceable condition (relative term, i know) could use it for breathable air? no additional work required? special scuba voodoo? anything?
sorry if im being a pest, just curious as to the differences. not that im going to try it anytime soon, i was just under the impression that there was more different than there was in common between class e (i think), and lower classification compressors
thanks again
edit~~~
thanks skippy! good timing = D