Filter Tube Jr Vilmos Blue - 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: One size. Designed for kids (not recommended for under 3-year-old babies). Size: 45 cm - 52 cm Head circumference (Measurement taken over nose, below ears). 98% BACTERIAL FILTRATION EFFICIENCY Made from three combined layers the filter offers 98% Bacterial Filtration Efficiency (BFE) and excellent breathability. Made in Germany to fit the specific BUFF® Filter Mask design this single use filter is glue and latex-free. TOGETHER FOR CHILDREN UNITED AGAINST COVID-19 - Global Alliance with UNICEF: we will be donating a 2% of our profits to contribute on projects against COVID-19 and its consequences on children and society in the most vulnerable countries.