Airy alternatives to a pressurized environment.

[LuigiThirty]

Can we simply put jetpacks/air tanks on the back of a spacesuit? Remove with grab intent to refill if needed.

God, yes. Spacesuit + Jetpack = MMU.

I love the oxygen gizmo idea, too. There’s no reason why repressurizing a room should be damn near impossible if you’ve sealed all the holes.