MEDISON 3PLY ADULT Premium Soft Surgical Face Mask BLUE 50's BOX / ASTM Level II/ PM0.1/ BFE99% is a disposable face mask that is designed to protect adults from airborne particles and bacteria. It is made with three layers of high-filtration fabric, including a non-woven outer layer, a melt-blown middle layer, and a soft non-woven inner layer. The mask also features a flexible nose bridge and ear loops for a comfortable and snug fit.