How long is the oxygen flow available for use in the aircraft?

The duration of oxygen flow available for use in an aircraft is typically designed to provide sufficient time for passengers and crew to secure their safety in the event of an emergency, such as cabin depressurization. In many commercial aircraft, the standard oxygen flow lasts approximately 12 minutes. This time frame is crucial as it allows individuals to put on oxygen masks, assess the situation, and take necessary actions, which may include descending to a lower altitude where breathable air is available.

It is also important to note that this duration is based on average flight profiles and emergency procedures, ensuring that adequate oxygen supply is sustainable under assessed scenarios. Having a flow time of 12 minutes strikes a balance between providing enough time for emergency responses while also considering the limitations and logistical aspects of the oxygen supply system within the aircraft.