The most versatile mask available just got more Techno, now conforming to CE standardsThe Techo providiesg excellent filtration against most types of pollution a cyclist is likely to encounterCE-HT25 filterCertified FFP1-RCE1463Head Strap fittedUses a Dynamic Activated Charcoal Cloth filter to filter the worst of urban pollutionAlso uses a HepA-type filter to screen out sub-micron pollutants such as pollens and respirable dustsIncludes two Techno valves to allow easier exhalation, which is particularly important as they release heat, water vapour and Carbon DioxideComes in two sizes, with a contoured shape for a good seal and comfortable fit and Velcro pads for easy applicationMade from hypo-allergenic Neoprene giving a comfortable and secure fitThe filter is replaceable, and is designed to be effective for at least 1 month in normal daily use