Yeah, but that would mean a separate "for human consumption" oxygen tank. Sorry, bad idea, no room. Besides, the fragrance of oxyacet, urethane paint, steel melting, etc.. isn't that normal?
Honestly though, if you go out to salvage yards much, the person there isn't out in the yard with you, so if you are pulling flywheels, engines, stubborn parts, if you didn't bring the tools you need out there, you don't get the parts. Since time is money, I would be lost without my electric grinders, electric hoists, etc, etc.
