I believe the masks are set for deployment above a cabin altitude of 16000 ft for high altitude opperations and 14000 ft for normal ops if they have not been deployed earlier by the pilot. i also understand that oxygen is very limited, Round 12 minutes.
It is worth noting that a normal mix of passengers are not all young and healthy and although many passengers can tolerate some degree of hypoxia others have conditions which may push them into the area of the oxygen–hemoglobin dissociation curve that severe and possible complications can occur,
Yes the procedure should not be rushed but the descent to 10000 ft or other elevation that is required by terrain should be complete within that 12 minutes from the loss of pressure,
Last edited by harrryw; 27th Feb 2021 at 10:16.