[5 layers of protection] - This kn95 kids face masks is made of 5 layers of high quality materials, including 2 layers of non-woven fabric, 2 layers of meltblown fabric and 1 layer of hot air.With a high filtration efficiency of ≥ 95%, this breathable mask for kids provides your child with better protection while breathing smoothly during all activities outdoors or at school.[3D Cup Design]-The kids mask of CTC connexions is designed to be more ergonomic for children's face shape. The 3D shape provides enough breathing space and a snug edge seal for children to breathe fresh air easily. This kn95 mask for kids provides your children comprehesive safety protection, breathable and comfortable wearing experience.[Elastic earloop & Adjustable nose clip] The flexible metal nose clip can be adjusted to fit the child's nose perfectly, and the high elasticity ear loops will not strain the child's ears even if worn for a long time. (Earloop length is 3.2 inches and stretch length is up to 6.5 inches)[Multi purpose scene]: kids kn95 mask measured at 4.72" x 4", it fits most children. A pack of 30 protective face mask for kids can be widely used indoors and outdoors in schools, parks, tourism, supermarkets, churches, camping, playgrounds etcDisclaimer: “This KN95 mask is NOT an N95 mask. For more information about KN95 masks please see the following before you purchase: amazon.com/AboutKN95s”