1. Dispsoable Great elasticity face mask,Size:17.5x9.5cm,3-PLY. 2. Very low resistance to breathing,free from foreign smell,without any stimulating feeling. 3. Elastic band and contoured styling,nose bar can be adaptable,comfortable,without glass fibres,latex free. 4. PFE(Filtration efficiency of non oily particles)≥30%,BFE(Bacteria filtration efficiency)≥95%(99%). 5. Use ultrasonic welding technology, comfortable wearing,breathable,hygienic, and biodegradable 6.Excellent for Hospital, Clinic, Dental, Surgery room, Beauty room, food industry and emergencies