I have a cool steam vent that I finally got cooled by the AETN via hydrogen loop.  Before it came out of dormancy, I left the door open to let out some higher pressure air inside that somehow got there before.  The outside pressure is around 750 g/tile, and the inside got down to around there.  There was a tiny bit of chlorine, some polluted oxygen, and some oxygen, all under 1000g each.  Now after it has been running for a few cycles, most of the main volume is full of polluted oxygen at 3300g,
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