Aircraft flying at higher altitudes require oxygen systems, which serve as either primary supplemental oxygen for unpressurized aircraft or for emergency pressurization loss in pressurized aircraft.

You should know the safety spiel well by now – “In the event of emergency, put your oxygen mask on first.” But have you ever wondered why the cabin crew is so careful to hammer this information into ...

A new study suggests that face masks have a negligible negative effect on the levels of carbon dioxide and oxygen that a person breathes. All data and statistics are based on publicly available data ...