4-layer three-dimensional mask. Outer layer: SS non-woven fabric/spunlace*. Filter layer 1: melt blown cloth. Filter layer 2: melt blown cloth. Inner layer: SSS skin-friendly cloth. Features. Three-dimensional tailoring of highly breathable masks, comfortable and will not burn the skin. 4-layer filtration, effectively filtering 99% harmful particles, pollen, droplets. Comfortable surrounding chin design expands large breathing space and greatly improves breathability. *The outer material uses spunlace or SS non-woven fabric according to the mask style. Precautions:. This product is a disposable product, please do not wash it.. Please dispose of the mask properly after use.. Please put the product in a cool and dry place, avoid direct sunlight.. Please avoid placing it in the reach of children, and store it in a clean place. [Made in Hong Kong] 3DMASK (30 pieces/Box) GREY. Size:~200x75mm (Folded). 30pcs individually packaged/box.