Malaysian Airlines MH370 contact lost

[mickjoebill]

777 I work on do not use chemical oxygen generators for passengers

Thanks for the info any idea what MH 370 has/had?

Is the passenger bottled air regulated, does it have a defined endurance once activated, regardless of the number of passengers who are using it?

Is the figure of 2 hour endurance for flight crew in the ballpark?
I assume flight crew O2 is regulated, does it then follow that the 2 hour figure would double to 4 hours, if in use by only one crew member instead of two?

exactly, the oxygen is on a gaseous ring main and the portable oxy bottles last at least 60 minutes depending on if you are on hi or lo flow.

Thanks MoP, to be clear the gaseous main is for passengers and it lasts sixty minutes?

Mickjoebill