23 Jul 50 PCS KN95 Protective 5 Layers Face Mask Disposable Respirator BFE 95% PM2.5
KN95 KN 95 Face Mask Disposable Face Mouth Cover QTY:50 pcs About the mask: this is a 5-layer mask with a built-in bridge of the nose. The outer two layers are non-woven fabric, the middle two layers are melt-blown fabric, and the thicker one is...