MSR can make that claimand more with its new Guardian Water Purifier. Filtersystems have generally been constrained by their ability toeliminate only bacteria and Cryptosporidium (a ...

The U.S. military asks them to create water filtration technology designed for troops. Global health nonprofits seek technologies from them to help filter safe drinking water in developing countries.

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 ...

When I first saw the MSR Guardian and its $350 price tag, I thought it must be an April Fool’s joke. When it comes to backpacking gear, there's a long list of things I would want to spend that much ...

Backpackers and hikers tend to take water filtration for granted: for $18, you can buy a straw-style filter that weighs less than two ounces, is small enough to stick in your pocket, and will provide ...

When walking in the woods, you’re only as good as your water source. Being a novice backpacker with a handful of trips under my belt, I’m still amazed by the concept of a backcountry water filter, ...

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 ...