The utility model relates to an isolation type composite
oxygen self-rescuer which comprises a lower shell, an upper cover, an opening mechanism and a composite
oxygen self-rescue mechanism, and the self-rescue mechanism comprises a compressed
oxygen bottle, a control valve group, a shifting piece, a pressure gauge, an air supplementing pressure plate, a
carbon dioxide adsorption cavity, an
oxygen mask, an expiration
pipe, an upper filter screen, a breathable bottom plate, a threaded plug and an air guide
pipe. According to the underground
breathing self-rescuer, the shell is convenient to open, the oxygen valve group is convenient to open, oxygen is continuously and stably supplied, the harm of
oxygen supply temperature to a
human body is effectively reduced, the size is small, the weight is light, and the problems that the shell is inconvenient to open, the oxygen valve group is tedious to open, and a chemical oxygen self-rescuer is low in early-stage concentration; the compressed oxygen self-rescuer filled with a large amount of
calcium hydroxide and oxygen is large in capacity and heavy in weight, and compared with the prior art, the compressed oxygen self-rescuer has good market prospects and development space.