This filtration bottle is great for emergencies or to just take with you to enjoy fresh water anywhere! Here are some key features of this new filtration system: * Removes up to 99.99% of pollutants and contaminants found in drinking water sources using its proprietary Ionic Adsorption Micron Filtration System. * Produces up to 100 gallons of filtered water * The top cap has a soft plastic removable cover for the drinking spout which keeps it free of dirt and contamination * 26 oz size is compact, light weight and easy to use * Tested by Independent laboratories using EPA and NSF protocols