Disposable Face Mask. These 3-ply disposable face masks are comfortable to wear and ensure easy breathing. They provide adequate protection and serve as an adequate barrier against contaminants and particle droplets entering the body through the mouth and lungs. It also catches the bacteria shed in liquid droplets and aerosols from the wearer’s mouth and nose. Disposable face masks are not intended to be used more than once but can be used for extended periods if not exposed to bodily fluids such as saliva or nasal fluid.