The standard 3-Layer Surgical Masks is also known as a fluid-resistant surgical mask (FRSM). The mask is designed to provide a barrier to droplets which can adversely affect the wearer’s nose, mouth and respiratory tract. It fits fairly loosely to the user’s face in comparison to the KN95 mask. These single-use masks are used for a variety of procedures in community as well as hospital settings. They should be changed when they become moistened or damaged. 3-layer surgical masks should be worn with eye protection.