5-Layered Filter Design : These kn95 face masks are made of two layers of non-woven cloth, two layers of melt-blown fabric, one layer of hot air cotton. From outside to inside, the second and third layers are melt blown cloth. When they are produced, they are easy to stick together, which will cause you to mistake them for one layer, You can separate them by rubbing them | Adjustable ear hooks can eradicate the strain on the ears, carry a cushty expertise, and supply audlts with extra complete safety. | Perfect Design : The 3D shape is designed according to the human face shape to ensure the tightness. With soft and high elastic earloop, the metal adjustable nose clip bridge and the dot matrix welding. Provide a light weight wearing experience for you. | Our KN95 face mask for audlts ,including 5 colors in one package, which the colors are both vibrant and stylish. | Disclaimer : This KN95 mask is NOT an N95 mask. For more information about KN95 masks please see the following before you purchase: amazon.com/AboutKN95s