(1) White non-woven fabric surface layer: block air pollution particles from entering.

(2) Ultrafine melt-blown filter paper layer effectively prevents PM2.5 particles from entering.

(3) Antibacterial layer: block air pollution particles from entering and prevent foreign bacteria from spreading their own bacteria.

(4) High-quality non-woven inner layer: soft fabric, breathable and thin.

(5) Non-woven fabric layer: Non-woven fabric layer, complete filtering.

CERTIFICATED

____________________________________________________________________________________