MSR Guardian Water Purifier promises fast, safe drinking water from almost any source By Aaron Heinrich September 29, 2015 The MSR Guardian can filter and purify up to 2.5 liters of water per minute, ...

When traveling to foreign countries, especially the third-world adventure variety, for years you lived by the “don’t drink the water" rule. With the newly designed MSR Guardian Purifier in hand, you ...

New perk: Easily find new routes and hidden gems, upcoming running events, and more near you. Your weekly Local Running Newsletter has everything you need to lace up! Subscribe today. When I first saw ...

Seven years ago, the US military had a dilemma: its service members, based in the world’s harshest and most resource-deprived locales, needed access to clean drinking water. But there wasn’t a ...

Physical water filters—the kind you pump water through—are popular because they’re reliable and easy to use. But they’ve always had a major drawback: the inability to catch viruses, which is ...