Oxygen masks are installed in planes and are usually stored above passenger’s heads in hidden panels.
Should the flight run into an oxygen-related emergency, such as the cabin losing pressure, the oxygen masks will automatically be released and drop down to be used by travellers.
Tanks of oxygen are stored in the underbelly of the plane, ready to provide those on board with the air to breathe.
“If the aircraft cabin loses pressure, the panel above your seat containing oxygen masks will open automatically,” inflight safety instructions state.
“While remaining in your seat, quickly reach for the nearest mask and pull down firmly to start the flow of oxygen.”
READ MORE: Flight attendant reveals passengers could be flying on ‘broken’ plane [COMMENT]