Product details of Basic NAVY FLU GUARD VIRAL SAFE N95 pollution Face Mask for PM 2.5, Viruses and Bacteria Filtration technology from Britain Adjustable ear loops adjust toggles to correctly fit around the ears Hand washable with warm water and soap/powder Breathing life up to 90 hrs Adjustable nose clip that fits the face and helps to prevent pollutants from leaking into the mask Exhalation valve for easy breathing; Available in two color. Available in XS, S, M, L, XL sizes Easy and convenient to use. Useful for schools, colleges, workplace, hospitals, sensitive groups