"Jinlong" brand tunnel helmet is mainly applicable to tunnels and other pressurized working environments. Its closed breathing characteristics can effectively isolate the external environment and protect the head safety of operators. Standard configuration: helmet body: the main material is carbon fiber, with high strength and small proportion. It not only reduces the wearing weight, but also takes into account the strong protective function. The front window has a wide field of vision, and the inner layer adopts anti fog treatment to effectively alleviate the fog of the front window. Air supply valve: with positive pressure function, the pressure in the helmet is always greater than the external ambient pressure, which plays a role in isolation from the outside. At the same time, it adopts the design of double air supply valves, one for use and one for standby, which greatly increases the safety.
