Oxygen in the lavatories
Garuda domestic are now including in their flight safety briefing for passengers words to the effect "oxygen has now been removed from the toilets of this aircraft (seems like all 737NG's).
In the event of cabin de-pressurization, passengers using the toilets should return to their seats".
Which raises a few questions :
1) "has now been removed" infers that they previously did have oxygen in the toilets. Why would they remove it / them.
2) What rules apply regarding oxygen in toilets?
3) In the case of cabin de-pressurization (without oxygen), what would be the chances of a passenger being able to clean themselves up a touch and then making it back to an over-wing seat from the aft toilets without succumbing to hypoxia?