General Face Mask
Product Size: about 17.5cmX9.5cm
Executive standard: Q/370700 XK001-2016
Outer layer: the outer layer is spunbond non-woven fabric. Solid support, effective dust isolation.
Middle layer: the middle layer is high-efficiency electrostatic filter material. The efficiency of bacteria filtration is as high as 99%.
Inner layer: the inner layer is spunbond non-woven fabric. It’s more comfortable to wear.