Product Composition Medical Protective Mask (hereinafter referred to as: mask) is mainly composed of a mask body, a nose clip and a mask strap that are heated by ultrasonic waves. The inner and outer layers of the mask are made of non-woven fabric; the middle layer is made of melt-blown cloth and hot-air cotton; the nose clip is made of bendable plastic material; the mask strap is knitted from polyester thread and spandex thread, and the mask strap contains a mask strap adjustment buckle, which is made of PVC material and can adjust the length of the mask strap. Intended Use It is suitable for medical working environments to filter particles in the air and block droplets, blood, body fluids and secretions. Advertising Approval No. Su Zhiguang Shen (text) No. 270605-26643