Filter Tube Solid BlackFilter 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 99% bacterial filtration efficiency meeting the performance requirements of Bacterial Filtration Efficiency and Breathability of the harmonized European standard EN 14683:2019 for surgical masks. The BUFF® Filter Tube is also certified CWA 17553:2020. *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. 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. Material: 99% BACTERIAL FILTRATION EFFICIENCY Made from three combined layers the filter offers 99% Bacterial Filtration Efficiency (BFE) and excellent breathability. Made in Germany to fit the specific BUFF® Filter Mask and BUFF® FIlter Tube design this single use filter is glue and latex-free. 95% Recycled Polyester 5% Elastane Specifications: ALL YEAR ROUND Looking for versatility and comfort every day of the year? Our selection of all year round comfort products is a perfect solution for those fresh spring mornings or those chilly summer evenings. Brand: Buff