The HFS3100P ventilator, researched by Henan Huirui Medical Equipment Co., Ltd, is a electro-pneumatically controlled time/pressure/volume ventilator, that is monitored by a micro-processor which can manage a mass of data and supply real time data and figures. The primary parts and components adopts high quality imported ones, which enhances the reliability and stability of this device. It is applied to emergency centers, Operation Room, ICU, CCU, inner and out of hospital transportation and the ambulances, supply oxygen and respiration support to the patients.