Mainly used for self-rescue, escape and rescue from a fire, etc., also used for short-term and frequent emergency repair and maintenance operations. It is upgraded on the basis of firefighting self-rescuing breathing apparatus with higher level of protection, and is a high mobility product with light weight and sealed protection. The main equipment can be recycled. The primary oxygen module supplies oxygen quickly, and the storage bag switches between dual forms to adapt to the scene. The oxygen module is replaced in two seconds for  a longer endurance and better maneuverability.