Reusable mask featuring 98% bacterial filtration efficency. Filters meet surgical mask standards. Filters included! Each mask comes with five replacement filters. Enjoy comfort in style. Keren Blue - Filter Mask BUFF®: Worldwide, face masks have become an essential accessory for daily activities like grocery shopping, using public transport or going for a run. The BUFF® Filter Mask features a 3-layer, replaceable filter system in a washable mask design made from Cool Net UV+® fabric. Reliable and comfortable, featuring 98% bacterial filtration efficency. Filters meet surgical mask standards. Powered by Hei Q V-Block- The fabric technology Hei Q V-Block protects the inside pocket fabric of the BUFF® Filter Mask from microbes and germs. It contains a biocide based on recycled silver salt. Active ingredient: Reaction mass of titanium dioxide and silver chloride. Antimicrobial properties built in to protect the inside pocket fabric of the Mask. The Mask does not protect users or others against pathogens. Always clean this mask thoroughly after each use. Design: Patterned. Size: Adults. Please note no returns available on this product - please see Section 23 of the t&c\'s for more info