I don't require oxygen to survive. [though this place does have it, obviously. he can taste it, especially with the greenery around.]

Logically speaking, if my people did not have the necessary physiology to survive in the nature of space, there would be no civilization on the moon.

[which is to say, of course he has no problem living on it. even before he was heavily augmented, he was still able to live. perhaps a half-human would have difficulty... but who else would be able to live on the moon than moondwellers?]