Description:【Comfortable To Wear】- The face cover is made of food-grade silicone material, and the elastic silicone perfectly fits the facial skin for a firm seal. The soft silicone will not make you feel uncomfortable. Headband can be adjusted.【Highlights】 - Very lightight,the surface is smooth and suitable for most people's faces. It has good sealing and is not sharp.Equipped with unique sound transmission device, this enhances the communications and ensures you never have to remove the respirator in severe environment where you would otherwise be tempted to remove the respirator to communicate【Wide Application】 - Full face respirator mask is suitable for painting, welding, agricultural operations, polishing, Chemical laboratory, petroleum,.