● In line with the "positive pressure fire air breathing apparatus" XF124-2013 standard, the air breathing apparatus has high temperature resistance, flame retardant and other properties.

● Carbon fiber cylinder, water volume 6.8L(9L), equipped with cylinder protective sleeve; Cylinder valve with self-locking structure, with circular integral press type design, bottle valve interface thread G5/8.

● The mask requires a total field of view retention rate of more than 80%, with anti-fog function; The head net is made of permanent flame retardant material, the mask is equipped with HUD pressure head-up display device, built-in, wireless transmission. Intelligent digital display electronic pressure gauge is adopted. When the pressure value is less than 5.5MPa and the mechanical alarm whistle sounds, the HUD has the red light and vibration alarm at the receiving end of the mask, and the intelligent pressure gauge has the light and buzzer alarm at the same time. The intelligent pressure gauge should also have the remaining gas volume display of the cylinder, the fall alarm function and the active call function. HUD continuous working time ≥120 hours, continuous standby time ≥12 months, sustainable working time after battery undervoltage > 24 hours, the alarm light automatically adjusts according to the ambient brightness; Low power alarm, yellow light reminds to replace the battery in time; HUD provides a copy of the explosion proof certificate.

● The air call backplane is designed in accordance with the ergonomic principle, in line with the Asian body type, and fits the back of the human body. When wearing the air call, the shoulder load is reduced, which is conducive to the rescue activities at the fire scene.

● The medium pressure tube is arranged between the gas cylinder and the backplane. The maximum working pressure of the pressure reducer is 30MPa and the air supply valve can be rotated 360°.

● Pointer pressure gauge alarm whistle is integrated design, alarm pressure 5±0.5Mpa; Average air consumption ≤4L/min, air leakage ≤12L/min, chest with rescue quick jack (Y tee), can be expanded for two people at the same time.

● The air supply valve has an automatic suction opening device, and the first breath is automatically activated. Dynamic respiratory resistance (cylinder pressure 30 ~ 2MP, breathing volume 40×2.5L/min)：Inspiratory resistance ≤300Pa, expiratory resistance ≤700Pa, the air supply valve and mask are inserted 360° quick insertion, any Angle can be operated. The small size of the air supply valve makes it easy for the user to grasp the air supply valve. The air supply valve is inserted directly below the mask to ensure a good lower field of view. Air supply valve and medium pressure pipe can be freely connected, disassembled and with self-locking function.