![A male flight attendant demonstrating breathing oxygen mask to passengers in a Boeing 737 operated by Pegasus airlines Stock Photo - Alamy A male flight attendant demonstrating breathing oxygen mask to passengers in a Boeing 737 operated by Pegasus airlines Stock Photo - Alamy](https://c8.alamy.com/comp/2R2TBDC/a-male-flight-attendant-demonstrating-breathing-oxygen-mask-to-passengers-in-a-boeing-737-operated-by-pegasus-airlines-2R2TBDC.jpg)
A male flight attendant demonstrating breathing oxygen mask to passengers in a Boeing 737 operated by Pegasus airlines Stock Photo - Alamy
The 737 Handbook - Quick Don Oxygen Mask, There are 3 settings you can operate the oxygen mask in: 👉 Normal: Mixes oxygen supply with cabin air to preserve oxygen. ✋ Do
![Oxygen Mask Crew Location At Cockpit Boeing 737 Stock Photo - Download Image Now - Aerospace Industry, Air Valve, Air Vehicle - iStock Oxygen Mask Crew Location At Cockpit Boeing 737 Stock Photo - Download Image Now - Aerospace Industry, Air Valve, Air Vehicle - iStock](https://media.istockphoto.com/id/1615931744/photo/oxygen-mask-crew-location-at-cockpit-boeing-737.jpg?s=612x612&w=0&k=20&c=KgBuaSdmxgvKP3_mkdfK2Yg9wc4DwemUkNA5BTONa7k=)
Oxygen Mask Crew Location At Cockpit Boeing 737 Stock Photo - Download Image Now - Aerospace Industry, Air Valve, Air Vehicle - iStock
![Panic on tourist flight as oxygen masks FAIL during terrifying 25,000ft plunge leaving passengers suffocating | The US Sun Panic on tourist flight as oxygen masks FAIL during terrifying 25,000ft plunge leaving passengers suffocating | The US Sun](https://www.thesun.co.uk/wp-content/uploads/2023/02/terror-rossiya-airlines-plane-made-798219809.jpg)