How are high-altitude oxygen requirements determined for passengers and crew on Latitude flights?

• A. Based on cabin altitude and regulatory guidelines; deconflict with flight duration and passenger needs; provide oxygen as required.
• B. Oxygen is always required for all passengers on every leg.
• C. Oxygen is never required for crew.
• D. Oxygen is provided only if someone asks for it.

Answer: (A)

Oxygen needs are determined by how high the cabin is pressurized (cabin altitude) and by regulatory requirements, then adjusted for how long the aircraft will be at those altitudes and any specific passenger or medical needs. The flight crew monitors the cabin altitude and, if it climbs high enough or stays high for the required duration, supplemental oxygen is provided to those who need it. This approach ensures safety and regulatory compliance without giving oxygen to everyone on every leg. In practice, oxygen isn’t only supplied on demand or never used for crew; it’s planned and distributed as required by the altitude and time above threshold, with additional oxygen available for medical or passenger needs as they arise.