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Three-layer non-woven mask

Product name: three-layer non-woven mask "flat mask" Three-layer non-woven mask size: 17.5mmx19.5mm. Three-layer non-woven mask features: environmentally friendly plastic strip. Three-layer non-woven mask material: two layers of fiber non-woven fabric. Three-layer non-woven mask use: medical and health Three-layer non-woven masks are made of two layers of fiber non-woven fabrics that are professionally used for medical and health, and a layer of filter-solvent spray cloth with 99.999% filtering and anti-bacterial protection is added in the middle of the three-layer non-woven masks.