The products are made of non-woven raw materials by ultrasonic heating, spot welding, tape and other processes. Ear hook. Three dimensional design, make the face more fit, suitable for all kinds of face types, no particle ultrasonic sealing edge, comfortable to wear. It can better block dust and microorganism, wear it for a long time without tension and allergic reaction; use smooth cloth to reduce fiber drop, wash free and maintenance free, convenient and practical, more safe and sanitary.