Supplemental Oxygen

Supplemental oxygen is an additional oxygen supply required for flight crew and passengers when operating at high cabin pressure altitudes to prevent hypoxia. Strict regulations dictate the carriage and continuous use of oxygen equipment above specific flight levels.

Key Points

• •Flight crew must use supplemental oxygen if operating between FL125 and FL140 for more than 30 minutes.
• •Mandatory for flight crew for any period when the cabin pressure altitude is at or above FL140.
• •Passengers must be supplied with oxygen for any period when the cabin altitude is at or above FL150.

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