CUTE KITTY REALISTIC CAT FACE MASK CHILD SIZE Our masks are available in two sizes: for adults and for children. The child size is recommended up to the age of 13, whereas the adult size is suitable over 10 years. Between the age of 10-13 it’s up to you which size you choose, but please consider if your child is bigger or smaller than the average. Choose this product if there is no need to wear a medical mask, but you want to be cautious and wary. This face mask provides similar protection to a surgical mask.