CONFORMS TO EN 14683:2019, CE CLASS 1. BFE: 98% Features: 150mm Elastic Ear Loops. 3 Ply with Filter Layer. The surgical face mask is single-use, disposable, provides non-sterile protection, and intended to be used to protect both the patient and the wearer from transfer of microorganism, body fluids and particulate material. These face masks are intended for use in infection control practices to reduce the potential exposure to blood and body fluids. Box of 50.