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Commercial pilot's emergency facemask and oxygen system (Delta Airlines). | Full face mask, Face mask, Gas mask
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Airbus 320 oxygen masks deployed during routine maintenance at San Francisco Airport. 2017. | San francisco airport, Oxygen mask, Mask
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Cabin crew demonstrating an oxygen mask in the safety demonstration on board an Airbus A320 at Puerto Maldonado airport, Tambopata, Peru, South Americ Stock Photo - Alamy
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