Abstract: A series of problems are common in domestic compressed-oxygen self-rescuer, such as the failure to meet the design requirements, easy air leakage of the whole machine, the need to replace the carbon dioxide absorber regularly when the product is not used, the new ZYX100 isolated oxygen self-rescuer is developed. The overall double sealing technology is created and applied to this new rescuer. Without service, no maintenance is needed even for a long time. The transparent housing enables easy monitoring of the inside situation of the equipment; it is unnecessary to replace carbon dioxide absorber due to the new carbon dioxide absorbing can. The independent automatic supply device is suitable for heavy-load individual escape.