Scrapped an "Oxygen Enricher" from a medical Supply Dumpster

Scrapped an "Oxygen Enricher" from a medical Supply Dumpster. Inside the thing is a heavy motor with a fan, like a vacuum, and 3 aluminum tanks, 2 filled with beads like a catalytic converter.
About 4 pounds of aluminum plus a pound of brass fittings for the hoses, plus the motor. The motor smelled so terrible though, I don't know what it was.