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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.

Am I right? They’re heavy, slow, expensive, and frustrating to use. Worse: The marketing around them obfuscates what they’re genuinely capable of, making it difficult to know which one can genuinely ...

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, ...