This three-layer face mask is treated with HeiQ Viroblock antimicrobial technology that protects it against contamination by microbes and germs, with a biocide of Silver Chloride. The outer layer has a Teflon™ water-repellent coating, the middle filtering layer provides an optional pocket for the addition of a PM 2.5 Carbon Filter and the inner layer is treated with HeiQ’s Viroblock technology that will remain effective for up to thirty washes at 60C . This mask offers a snug fit over the nose and under the chin and can be secured in place with elasticated ear loops with an adjustable drawcord