Masks provide face and respiratory protection against particulates, vapors, and gases by way of Ultravue facepiece and lightweight, replaceable canister. Chin-type gas mask features small, oval-shaped aluminum canister for easy downward head movement. Ultravue facepiece is constructed of black Hycar rubber with wraparound polycarbonate lens for minimal visual distortion. Features include inhalation check valve that prevents exhaled air from entering breathing tube, mechanical speaking diaphragm for short-range communication, and five adjustable rubber straps and a vinyl neck strap for holding facepiece in standby position. Maximum Use Conditions: Entry, 100 times the Permissible Exposure Level (PEL) without exceeding the Immediately Dangerous to Life or Health (IDLH) concentration; Escape, contaminant concentrations up to 5000ppm (0.5% by volume) providing presence of adequate oxygen (19.5% by volume). Canister provides respiratory protection against a specific gas or group of gases.
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