Surgical Face Mask Made by: 3 ply Spunbond 65-70 GSM non woven fabric, outer both layers 25 GSM and middle layer 15-20 GSM, Nose pin with automatic Plant. Bacterial Filtration Efficiency good. Useful against viral germs. Antibacterial 3ply layers. Antipollen Antidust Fire resistant Water resistant Flexible Earloops are Ultrasonic pressed. Per box 50 pieces in very good packaging.