Mine air pressure self-help device is a fixed permanent self-rescue equipment, used with a coal and gas outburst in coal mine disaster protection, installed in someone's place of work and mobility roadway or caverns, and can also be installed in tunneling stope. When the occurrence of coal and gas outburst omen, staff can enter the nearest self-help devices, open the pressure valve for disaster prevention. Mine air pressure self-help devices are typically formed after the system used by a number of groups that air pressure in the formation of self-help devices installed wind pressure self-help stop the same place, each generally from 3 to 5 heads, each of which hold much head location, which should be considered The number of workplace work may be, it should be greater than the number of the mounting head count at the place of work. The device system is simple, cheap, is an economical system of permanent self-help devices Pressure Air pressure: 0.3 ~ 0.7MPa Output pressure adjustment range: 0.09MPa single unit air consumption: 150 ~ 200L / min air supply: connecting pressure air system or a separate gas distribution station (ground) Noise pressure: ≤85dB operating modes: manual adjustment, operating weight: 0.75kg