For how long does the T6A Emergency Oxygen Cylinder provide 100% oxygen?

The T6A Emergency Oxygen Cylinder is designed to provide pilots with a source of 100% oxygen in emergency situations. Its intended duration for supplying oxygen, particularly at operational altitudes where cabin pressure may be compromised, is approximately 2-4 minutes. This amount of time is critical for allowing pilots to maintain cognitive function and execute emergency procedures effectively while taking steps to descend to a lower altitude where supplemental oxygen may no longer be necessary.

Many other emergency oxygen systems similarly provide a limited duration of oxygen to ensure a quick and effective response to incapacitating conditions. The specific range of 2-4 minutes reflects the balance between tank size, the rate of oxygen flow, and the need for rapid descent in an emergency.