Our Natural Organic Cotton M11 Flu Mask provides even more protection with style! Our masks also provide anti-bacterial and hypo allergenic qualities that others can’t. Our M.E.R.V. 11 advanced pharmacuetical grade filter sandwiched between the inner and outer layers adds an additional and most distinctive level of protection from molecule size pollutants that pose the greatest risk! Respiratory protection from dangerous airborne particles – allergens, germs, smoke, pollen, haboobs, dust, pet dander, flu, cold and other pollutants that can cause or irritate bronchitis, respiratory illness, weakened immune systems, COPD and asthma. Uses: Outdoors, traveling, wood working, general construction, remodeling, painting, grooming, power washing, sweeping, snow plowing, leaf blowing and edge trimming, lawn mowing, pet grooming, sanding, drywalling, public areas, smokey atmosphere, in the yard, attic, garage and basement. Your first line of defense – fashionable, comfortable, ECO friendly, washable, re-usable and made in the U.S.A. Size: Teen – Adult Made of Eco friendly fabrics: 47.5% SOY/47.5% ORG COT/5% SPANDEX