United States Navy Cloth face mask. The outside of the mask is like an armor plate that prevents bacteria and viruses from reaching the nose and mouth area - a natural window from which germs can enter the throat - lungs and cause illness. What we are exposed to will be saved on the outside surface of the mask, turning it into a "disease reservoir". If you put your hands up to touch the surface of the mask without disinfecting your hands right after that, you accidentally put all the dirt from the mask into your hands. From the hands, people touch the face again, spreading the bacteria elsewhere ...
