Reusable tube face mask made from 95% recycled plastic bottles Certified filters included! 98% filtration efficiency guaranteed. Recyclable in plastic bin. Designed to provide warmth and comfort. Ergonomic shape for better face fitting. Ensures mouth and nose covering. Description Filter Tube BUFF®: Keeping ourselves and our families safe and healthy has become a shared concern around the world. The BUFF® Filter Tube is reusable and features a 3-layer replaceable filter system in a washable multifunctional tubular made from recycled microfiber. Ergonomic neckwear design to be comfortable all day. Certified filters provide 98% bacterial filtration efficiency meeting the performance requirements of Bacterial Filtration Efficiency and Breathability of the harmonized European standard EN 14683:2019 for surgical masks. *Powered by HeiQ V-Block- The fabric technology HeiQ V-Block protects the inside pocket fabric of the BUFF® Filter Tube 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 BUFF® Filter Tube. The BUFF® Filter Tube does not protect users or others against pathogens. Always clean this mask thoroughly after each use. Design: Patterned. Size: XS-S / M-L. Designed for adults. Features A revolutionary neck warmer for this new season! Featuring certified filters to prevent COVID-19 spread All-day comfort: lightweight, breathable, ergonomic design avoiding ear pressure. HeiQ V-Block* antimicrobial fabric treatment applied to inside pocket Comes with 5 replacement filters. Non-reusable, can last up to 24 hours. Usage time depends on the use and environment. Buy replacement filters here.