A340 Crew rest module.
Does anyone have any definitive info on the lower deck A340 crew rest module, specifically relating to the condition of 'Low Air Flow'? My information was that when a condition of 'Low Air Flow' exists an alarm and warning light activate in the module and it's occupants should leave and not return until the air flow returns to normal. Can anyone briefly explain the how the ventilation system works, what could cause the low flow situation and whether it is necessary to evacuate the module in a hurry, or at all? Is it permissible to return to the module with the alarms still activated, and is there a means to ascertain whether the alarm was spurious or not?