Katadyn Hiker Pro is a portable water filtration system designed to improve the safety of untreated freshwater sources when used in accordance with the provided instructions. The unit is engineered to reduce microbiological contaminants commonly found in lakes, rivers, and streams, making water suitable for drinking. It meets U.S. Environmental Protection Agency microbiological purifier standards for the reduction of bacteria (99.9999% Klebsiella terrigena) and protozoan cysts (99.9% Giardia and Cryptosporidium), supporting reliable performance in backcountry and travel environments where treated water is unavailable.Within this context, freshwater refers to untreated natural water sources, while filtered freshwater denotes water that has been processed into potable drinking water using the system. Treated water includes municipal tap water or water that has been chemically disinfected or boiled. The filter is intended for use in hiking, camping, and remote travel scenarios, providing a compact and efficient solution for on-demand water purification with consistent microbiological protection.