Autopilot descent triggered by hypoxia alarm has been available for quite a while. It uses responsiveness heuristics rather than oximeter input. https://www.av

Autopilot descent triggered by hypoxia alarm has been available for quite a while. It uses responsiveness heuristics rather than oximeter input. https://www.aviationpros.com/press_release/10393999/cirrus-aircraft-announces-significant-new-software-features-for-cirrus-perspective-by-garmin-avionics-suite https://www.aviationpros.com/press_release/10393999/cirrus-a...