Sultan 20344 ASTM Level 1 Mask, Made in USA, Tie-On, White, Protects your sensitive skin while providing effective protection against contamination. We eliminated everything that could cause irritation. Hypoallergenic; there are no inks, dyes, perfumes, foam or scratchy surfaces. Just a soft, hypoallergenic, latex free cellulose inner lining and an inert fluid resistant polypropylene outer material. Also provides superior filtration of 99% at 0.1 micron. Mask, Tie-On, White, 50/bx