The self-rescuer is an isolated regenerative self-rescuer with chemical oxygen as the gas source. The human respiratory system is isolated from the outside world, which can prevent various toxic and harmful gases from entering, and can be used when people in distress escape.
The self-rescuer has the advantages of small size, light weight, simple operation, reliable performance, and convenient carrying.
This self-rescuer is mainly used in coal mines or in various toxic gas and oxygen-deficient environments, coal dust and gas outbursts, explosions in mines and places with CO2 outbursts, for individuals to wear for self-rescue, and protect people from breathing normally to escape the disaster area.
This self-rescuer can also be used in modern high-rise buildings and in toxic and harmful gas or oxygen-deficient environments. When a catastrophic fire occurs, it can be worn by the victims to escape and use when waiting for rescue.

Figure 1
1-Lower shell
2-Upper shell
3-Nameplate
4-Belt loop
5-Lock and protective belt
6-Number plate