... 3.Facepiece moulded in natural rubber material 1.MF11B gas mask Product featuresHead harness typeWith voicemeter , comfortab to wearFacepiece ... protectionService life:depending on MQ canister 2.Head harness type mask with lightweight canister1) Service life: (min) >50min, CNCI: ... protection to the wearers respiratory organs, eyes and facial skin. The gas mask is designed for the military, police and ...