Commercial aircraft provideprovided [[Emergency oxygen system|emergency oxygen]] to passengers to protect them in case of loss of cabin pressure. Chemical oxygen generators are not used for the cockpit crew, who are typically supplied using compressed oxygen canisters also known as oxygen bottles. In narrow body airliners, for each row of seats there arewere overhead [[oxygen mask]]s and oxygen generators. In some wide-body airliners, such as the [[DC-10]] and [[IL-96]], the canisters and oxygen masks arewere mounted in the top portion of the seat backs, since the ceiling iswas too high above the passengers. If a decompression occursoccured, the panels arewere opened either by an automatic pressure switch or by a manual switch, and the masks arewere released. When the passengers pullpulled down on the mask they removeremoved the retaining pins and triggertriggered the production of oxygen.
The oxidizer core is [[sodium chlorate]] ([[Sodium|Na]][[Chlorine|Cl]][[Oxygen|O]]<sub>3</sub>), which is mixed with less than 5
