![Airbus 320 oxygen masks deployed during routine maintenance at San Francisco Airport. 2017. | San francisco airport, Oxygen mask, Mask Airbus 320 oxygen masks deployed during routine maintenance at San Francisco Airport. 2017. | San francisco airport, Oxygen mask, Mask](https://i.pinimg.com/originals/e6/5d/e6/e65de65e4eac693bfe04d6453707b04b.jpg)
Airbus 320 oxygen masks deployed during routine maintenance at San Francisco Airport. 2017. | San francisco airport, Oxygen mask, Mask
![Breaking Aviation News & Videos on Twitter: "Aeroflot A350 oxygen masks released during a flight from Antalya due to a pressure system issue. Aircraft made a safe landing moments later in Moscow. Breaking Aviation News & Videos on Twitter: "Aeroflot A350 oxygen masks released during a flight from Antalya due to a pressure system issue. Aircraft made a safe landing moments later in Moscow.](https://pbs.twimg.com/media/E8sXZ5EXIAAyyOC.jpg:large)
Breaking Aviation News & Videos on Twitter: "Aeroflot A350 oxygen masks released during a flight from Antalya due to a pressure system issue. Aircraft made a safe landing moments later in Moscow.
![Commercial pilot's emergency facemask and oxygen system (Delta Airlines). | Full face mask, Face mask, Gas mask Commercial pilot's emergency facemask and oxygen system (Delta Airlines). | Full face mask, Face mask, Gas mask](https://i.pinimg.com/originals/0e/f2/8b/0ef28ba836ef2c3477065eeaa3f829f5.jpg)
Commercial pilot's emergency facemask and oxygen system (Delta Airlines). | Full face mask, Face mask, Gas mask
![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 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](https://c8.alamy.com/comp/W4364B/cabin-crew-demonstrating-an-oxygen-mask-in-the-safety-demonstration-on-board-an-airbus-a320-at-puerto-maldonado-airport-tambopata-peru-south-americ-W4364B.jpg)