3-layer filter masks made up of an outer layer in 100% oeko-Tex 100 class 1 certified cotton fabric and 2 inner layers of 100% water-repellent double-layer polypropylene (TNT). Pre-shaped and adjustable for the face as it is equipped with soft side elastic bands. Mask washable and reusable up to a maximum of 5 times. it is recommended to use this mask for a maximum of 8 hours, after which it is necessary to sanitize it. Wash the mask at a maximum temperature of 60 ° with suitable disinfectant and sterilizing products. With the purchase you will receive 1 pack containing 5 masks for children with assorted colors.