A surgical face mask is a disposable, loose-fitting device that is designed to cover the nose and mouth of healthcare professionals and patients during medical procedures to protect them from airborne particles and droplets that may contain infectious agents.Surgical masks are typically made of multiple layers of material, such as polypropylene, that filter out larger particles in the air. They may also have a metal strip or wire over the nose area to help the mask fit snugly over the face and prevent air from entering through the top of the mask.