4 ply Active Carbon Face Mask 1, Material:PP+FILTER +ACTIVE CARBON+PP 2, Weight:18g+20g+40+25g 3 ... , Style: Earloop, Tie on Product Name: 4 ply Active Carbon Face Mask ... 3/4 ply face mask, etc. Product Details:1) Material: SBPP+FILTER +ACTIVE CARBON+SBPP2) Weight: 18g+20g+ ... as coverall, isolation gown, surgical gown, lab coat, face mask, bouffant cap, mob cap, surgeon cap, doctor ...