Happy 3 Layer Face Masks with Built in Middle Filter Layer. Designed according to WHO recommendations on non-medical-grade masks: 3 layers of different materials with the first layer an absorbent followed by a filter layer and an external fluid repellant layer. Happy starts with a super soft 100% cotton inner layer for extended wear comfort. The middle layer is a built in filter for dust and particle prevention. The external layer is a 100% cotton with water repellent with antibacterial and anti droplet treatment. Ear loops are adjustable for a secure fit. Fits 9 year old - Adults. 100% Cotton with Built in Filter Layer. Antimicrobial, antidroplet, fluid repellent. Non toxic, all natural dye