Thanks Pesky and Jim and all,
I'm glad to hear these were made for breathing air. I'm not sure I'll ever use it for Nitrox, but thought I'd ask. If it's questionable, that is not a problem. I've found a local source for $3 air fills, and I think Nitrox is $10. It seems like a good price for a small portable compressor, and it has new filter appliance and filters. It's on it's way to me, and I'm sure I'll have more questions once I get it.
One I have now is regarding compressor oil. The owner suggested Anderol 500. Says it takes about 3/4 liter (of course he drained it before shipping). Is this the best (or proper) oil to use? I'm not doubting the owner, more wondering if there might be better oils (newer) that I should consider. Also, a source for this oil. I do plan on changing it often. He's sending the original Tech manual so I'll see what they recommend for that interval, but my experience with autos is that oil changes are cheap insurance.
Thanks for all the help.