The self-rescuer is an important device for the miners to rescue themselves when they fall into a coal mine disaster accident. It should be familiar to every coal mine underground worker. It is characterized by its small size, light weight, convenient portability, and short use time. It is caused by miners not directly injured in the body when they encounter fire, gas or coal dust explosions, coal (rock) and gas outbursts, and accidental plugging. A device for self-rescue under circumstances. Self-rescuer can be divided into filter type and isolation type according to its function principle. The filter self-rescuer is a self-rescue device that specifically filters carbon monoxide and converts it into carbon dioxide. It is mainly used to prevent carbon monoxide poisoning in flood or gas and coal dust explosions. The applicable conditions are limited by the oxygen content in the air and the types of toxic gases. They can only be used when the oxygen concentration is not less than 18% and the concentration of carbon monoxide is not higher than 1%. Air conditions that do not contain other harmful gases.
