Half-Mask Facepiece

Big K 5 Ply Disposable Mask | Big K Clothing The Big K 5 ply disposable mask with ear loop style is GB2626-2006 certified. Layer 1 is non-woven fabric, layer 2 is filter sponge, layer 3 and 4 is double 25 + 25 meltblown cloth, and the innermost...