Exactly. It can be done, but you first have to depressurize the cabin, causing the masks to deploy. Stowing the masks and refilling the oxygen tank would probably cost more than diverting, and you’d have to divert anyway because there’s only about 30 minutes worth of oxygen on board. /aviation nerd
Guys.......It’s ok”.) We aren’t going to throw people out of planes...well unless they are attatched to a bomb maybe.
The passenger air mask O2 supply does not come from “tanks.” It is generated by an exothermic chemical reaction that is initiated by pulling on the mask’s air line.