The CleanTek 3 ply face mask has a soft inner layer which will not irritate the skin. The middle layer offers >99.9% filtration efficiency to keep out nasty bugs and bacteria. The outer layer  is made from 100% Non-Woven Spunbound Polypropylene Fabric aids the filtration layer and provides strength to the mask. A wire is enclosed within the material in the nose bridge to ensure an excellent fit. Elasticated ear loops help ensure wearer comfort for long periods of time.