Kmb-18b diving mask is widely used in commercial and military diving activities all over the world. It is suitable for air diving and mixed gas diving. The neoprene head cover is fixed on the hard frame made of glass fiber with stainless steel clamp. The air supply assembly composed of steady flow valve, auxiliary valve and one-way valve ensures the safety of gas consumption for divers in underwater operation. The earphone and microphone in the mask can be connected with the diving telephone on the water surface through cable to realize real-time communication. In mixed gas diving operation, kmb-18b diving mask can be used with helium recovery unit. Kmb-28b diving mask & nbsp; KMB
