Features: 1. Made of natural rubber material, food grade, non-, odorless and . High elasticity, suitable for most person. 2. Two round transparent lens for viewing, which is high strength, shock resistance and oxidation resistance, effectively your eyes. 3. interface design for high tightness with hose and canister. Easy to install and remove. Built-in large breathing valve. 4. Use with different size of canisters for different environment to prevent inhaling harmful gases and steam and particulate matters, etc. 5. Adopts tight sealing at lens and breath ports, provides best for you. Specifications: Material: Rubber Color: Grey White Packing List: 1 * Gas Mask Note: Only include gas mask, canister and hose are not included.