Blue KN95 kids face mask comes with non woven 32%,melt blown 36%,hot air cotton32%,can filter out 95% particles in the air. Suitable for children aged 4-12. 5 layers(2 layers: Non-woven fabric 2 layers: Meltblown cloth 1 layer: Hot air cotton) Protect your and your family's health and safe,multi-layer protection. For general protection,non-medical. Shipping by Fedex /UPS about 2-7 biz days hand. pls check with us the latest inventory before placing orders.