ATPL: For a pressurised aircraft, the first-aid oxygen is designed to:
Domanda 125, Operational Procedures - ATPL - Airline Transport Pilot license
| Protect all the occupants against the effects of accidental depressurisation. |
| Protect the flight crew and cabin attendants against fumes and noxious gases. |
| Provide oxygen to 10% of passengers at a cabin altitude exceeding 13000 ft after 30 minutes. |
| Provide undiluted oxygen to passengers for physiological reasons following a cabin depressurisation. |
