These KN95 protective masks have an ergonomic 3D design that offers 5 layers of protection and efficient filtering. Easy ear-loop design and adjustable nose clip for added comfort, these masks cover your nose and mouth for daily use and protection. It avoids unfiltered air directly entering into the face masks and makes breathing safe. These KN95 masks offer good ventilation, have comfortable elastic ear-loops, and one size fits most faces. Although designed with technical specifications, this is not a medical product.