If that’s the case, then great. I just have a “thing” about compressed gases, having seen some truly impressive scenes of what can happen when things go bad.
Oxygen can be some scary stuff.
As a ha-ha, here is a hilariously out of date US Navy training film about liquid oxygen. A little graphic at times, but mostly bizarre. “Man from LOX”.
http://www.youtube.com/watch?v=Q9sIT6P_05I
most fire stations and ems units get their tanks filled at the nearest weld supply store.
check the pricing.
the fda lists medical oxygen as a drug (can you believe this) which is why the paperwork and stuff makes the cost higher.
while medical oxygen is 99% pure, industrial has to be at least 99.5% pure.
the only stuff that has different crap done to it is avaition grade oxygen. This crap has to be dry, dry, dry.