Face Mask AirPOP Kids NV 4pcs (Blue) Designed for children ages 3 and up. Designed with the respiratory volume of young lungs, ergonomic small face fit and the best innovations in mind. Made of breathable materials, it has a lightweight design and exceptional filtration. It will help protect your child's health with comfort and safety. Skin-friendly The AirPop baby mask uses a 3D sponge seal to reduce pressure on the back of the nose and face. As a result, your child will not experience discomfort while wearing it. Every face is different, so the Ergo Foam is shaped to fill the hard-to-seal area around the back of the nose. All of this provides comprehensive protection for the child, while maintaining complete comfort - both while studying and resting, as well as playing. High protective power AirPop Kids mask perfectly protects children's health, as evidenced by international certification GB2626-2006KN90, >91% 91% Usage Up to 40 hours of continuous use Class KN95 Performance standard GB2626-2006 Dimensions 14 x 15 x 15 cm Weight 13 g