This comes secondhand, but I have heard complaints from players on Zorweth. Reportedly, when logged out in a low oxygen environment, the server will calculate how much oxygen the player would have spent while offline in that zone; however, the inverse is not true. Players who have a less-than-full oxygen meter will not have the meter refill while logged out in an oxygenated zone.
This comes secondhand, but I have heard complaints from players on Zorweth. Reportedly, when logged out in a low oxygen environment, the server will calculate how much oxygen the player would have spent while offline in that zone; however, the inverse is not true. Players who have a less-than-full oxygen meter will not have the meter refill while logged out in an oxygenated zone.