Yes, thanks to the innovative valve technology of the AMEO FRESH AIR SYSTEM, the swimmer always breathes fresh air. Therefore, the ambitious swimmer as well as the recreational athlete can theoretically wear the POWERBREATHER for an unlimited period of time – particularly for crawl swimming. For the first time, there is no risk of pendulum breathing, i.e. increased inhalation of performance-reducing carbon dioxide. In addition, the POWERBREATHER offers the swimmer, thanks to its technology, always free breathing tubes and perfect ergonomics (secure fit, no pressure, no shifting, 180° vision): two advantages, which particularly are very positive in long-distance swimming.