Surgical mask
A surgical mask, also known as a procedure mask, medical mask or simply a face mask, is a  mask. It is intended to be worn by health professionals during surgery and during nursing. Such masks are used to catch the bacteria shed in liquid droplets and aerosols from the wearer's mouth and nose. They are not designed to protect the wearer from inhaling airborne bacteria or virus particles and are less effective than respirators, which provide better protection.