What is the minimum pressure that should be displayed on the pressure gauge for the Portable Oxygen Bottle (POB)?

The minimum pressure that should be displayed on the pressure gauge for the Portable Oxygen Bottle (POB) is 1600 psi. This pressure ensures that the oxygen supply is adequate for emergency use during a flight. POBs are critical safety equipment that must be maintained with sufficient oxygen pressure to provide necessary assistance to passengers or crew members in case of a medical emergency or decompression.

A reading below this threshold indicates that the oxygen supply may not be sufficient for effective use, making it imperative for flight attendants to monitor these gauges regularly. In aviation, safety protocols dictate that equipment must meet specific operational standards, and for POBs, this pressure minimum is a key component of that protocol to ensure readiness and reliability in emergency situations.