This project material safety material The full face mask is made of high quality silicone, non-toxic, soft, comfortable, durable, safe and healthy. Once applied, it will effectively remove any organic chemical vapors or fumes. PERFECT FIT AND COMFORT Made of food-grade elastic silicone material that provides a comfortable feel to your skin with an easily adjustable bi-elastic strap. Provide users with a wealth of replaceable accessories Double protection Double professional full face mask adopts a double filter system, which can effectively block 100% of the vapor/organic gas, smoke, pollen, dust and other particles in the air. Ideal protection for your work A variety of full face masks block chemical, glass, metal, paint, agricultural, formaldehyde and other harsh fumes/gases. Prevent dust particles from entering during mechanical work such as welding, sawing, grinding, graffiti, etc.