Pure2Go personal WATER PURIFIER Travelers Kit, Kills Virus and Bacteria, Better than a filter or straw Kills Waterborne Bacteria and Viruses and removes Crypto and Giardia on contact and on demand Kills 99.9999% Bacteria, Kills 99,997% Viruses, Removes 99.997% Protozoa, Significantly Reduces Radioactive Contamiants Pure2Go exceeds NSF/ANSI P231 and 53 standards for a water purifier Removable, replaceable and cleanable purification insert cartridges 3 U.S. Patents & 2-Year Limited Warranty