Get the added viral protection that's critical in popular wilderness areas and developing countries with this comprehensive purifier and microfilter system. The MiniWorks Microfilter- their best-selling filter for demanding conditions- utilizes a ceramic/carbon element to filter out waterborne bacteria and protozoa, as well as particulate, taste and odors at 1 liter per minute. When viruses are a concern, the chlorine-based Aquatabs purification tablets add viral defense. Together they provide the most reliable water possible in a compact, lightweight system that's great for backpacking and international travel.This system meets U.S. EPA requirements for microbiological water purifiers. FeaturesEffective Against: Viruses (99.99%), bacteria (99.9999%), protozoa (99.9%) and particulate. Meets U.S. EPA drinking water standards and NSF protocol P231 testing standard.Iodine-Free: Aquatabs tablets inactivate viruses without bad-tasting iodine. Includes 50 individually packaged tablets. Ea...