A face mask is a protective covering worn over the nose and mouth to help prevent the spread of germs, dust, and harmful particles. It is commonly used in healthcare settings, public places, and areas with poor air quality. Face masks can be made from different materials such as cloth, surgical fabric, or specialized filters, depending on their purpose. They help protect both the wearer and others by reducing the transmission of airborne diseases and pollutants. Wearing a face mask is an important part of maintaining personal and public health.