飞机运行所需的固体化学氧气供应是“氯酸蜡烛”和超氧化物钾（KO2）。氯酸盐蜡烛用于乘客氧气供应装置和其他应急氧气系统，如潜艇和逃生装置。超氧化物钾不用于飞机操作，但用于闭式循环呼吸器。讨论了二者的特点和应用，重点介绍了氯酸盐蜡烛。

Solid chemical oxygen supplies of interest to aircraft operations are 'chlorate candles' and potassium superoxide (KO2). Chlorate candles are used in passenger oxygen supply units and other emergency oxygen systems, such as submarines and escape devices. Potassium superoxide is not used in aircraft operations but is used in closed-cycle breathing apparatus. Characteristics and applications of both are discussed, with emphasis on chlorate candles.