Gently used Rechargeable Comes with fabric sleeve The LARQ Bottle PureVis™ is the world's first self-cleaning water bottle and water purification system. It uses PureVis technology to eliminate up to 99%* of bio-contaminants such as E. coli from your water and bottle. *Based on elimination 99.8% of E.coli in a 20-second cycle for all LARQ Bottles.