Folding Design Folding and slim designed for mobile. Made with ultrasonic welding technology. It provides a wide viewing angle. It is resistant to hot and humid environments. FACE SHIELD Natural rubber material without allergy Release resistant to wear Ventil It helps to evacuate the hot air formed in the mask during use. Prevents fogging in the use of glasses Comfortable to use Nose Clip It is in the secret compartment for aesthetics and safety. It takes the shape of the nose and prevents dust from entering. Filter Material High filtration efficiency with ultra-thin fiber structure. It provides low breathing resistance.