WORLD’S MOST ADVANCED PORTABLE PURIFIERThe MSR Guardian purifier combines military-grade engineering and game-changing hollow fiber technology to create the safest, easiest way to purify water virtually anywhere on earth. Co-developed with the military, it brings this advanced technology to international travelers, backcountry users and for disaster preparedness. Game-changing hollow fiber media offers the most reliable way to remove pathogens - even viruses - from the filthiest water. Add self-cleaning performance, and this purifier shifts the paradigm.
The Guardian’s Advanced Hollow Fiber TechnologyMilitary funding allowed leading-edge medical-grade fiber technology.Removes viruses in worst-case water to military standards.Not damaged by freezing.Purifier withstands MSR water lab drop test: 6 ft. to concrete.Manufactured in U.S. facility.Patent-Pending Self-Cleaning SystemNever requires backflushing or filter scrubbing to maintain flow.One each stroke, the purifier uses 10% of its water to flush the contaminants from its filter, releasing them through the dirty water outlet hose.This self-cleaning system ensures a fast flow rate regardless of water conditions.Fast, Easy & Long-LastingPurifies 2.5 Liters per minute from nearly every source without chemicals, bulbs or batteries.Treats up to 10,000+ LitersRugged ConstructionWithstands heavy use, freezing and extreme environments, and is impact-resistant.