What does PX Oxygen AUTO signify for pilots regarding altitude management?

The designation PX Oxygen AUTO indicates a system that manages oxygen levels automatically based on the aircraft's altitude. In this mode, the oxygen system continuously monitors the altitude and adjusts the flow of oxygen provided to the pilots and passengers accordingly. This integration is crucial for maintaining safe oxygen levels, especially when flying at higher altitudes where the atmospheric pressure is lower, and oxygen availability diminishes.

By having managed oxygen integration, the system helps ensure that the crew and any passengers receive adequate oxygen, improving safety and comfort throughout the flight. This automatic adjustment minimizes pilot workload and allows them to focus on other critical tasks during flight operations, especially when climbing or descending through different altitude levels.