At a price you just don't see at this level of quality, these Ultra 3 in 1 Tie On masks have the 3 best features you would be looking for in 1 affordable mask - Ultra High Filtration, Ultra Sensitive and Ultra Breathable. They feature an inner layer made of cellulose material, both sensitive and breathable and complete lint free. Great for sensitive skin - no dye, chemicals and gentle to the skin. These ear loop masks feature an increased wet strength that keeps masks away from mouths. Filtration = BFE 99.5&, PFE 99.7% at .01 micron. A premium mask at generic mask prices! Other colors available upon request - call us at 1-800-511-8652 to inquire.Do you order this product often and/or in large quantities? Check out our Large Order Program to save yourself time and money.