Our molded face masks are lightweight and comfortable with a single elastic band that makes them quick and easy to put on and take off.Refill includes 50 masks. Helps reduce potential exposure of the wearer to blood and body fluids. Greater than 99% Bacterial Filtration Efficiency (BFE) when challenged with particles approximately 4.6-4.7 microns in size. Soft and lightweight for comfortable wear. Collapse-resistant design. Non-fiberglass.