The 3 Ply Face Mask is designed in such a way so that they prevent our respiratory system. They are generally made up of non-woven material and are loosely fitted to have less resistance in wearing. It has soft elastic ear loops for easy wear and comfort. Some of the 3 Ply Face Masks are washable and can be reused. They are not as good as the KN95, and N95 Face Masks as they are not able to filter out the tiny particles present in the air, but they are easily available and are cheap compared to KN95, and N95 Face Masks.