- without PVC 100%.- a valve for exhale, allowing the wearer to breathe easily.- Dura-Mesh helps maintain the shape. Even have to work in the heat and humidity.- still use forming and no components of the metal. It is comfortable to wear throughout the day.- designed to fit with all the face to prevent pressing.The bridge of the nose - foam is soft add comfort in wearing.- Softspun lining that enhance the comfort and durability.- Certified NIOSH 42CFR84.
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