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More than a million people die each year from unsafe drinking water, often in conflict zones or after natural disasters. To address this, LifeStraw invented a solution that strips water of bacteria, parasites, and viruses at scale. Its compact, 16-lb. system attaches to an existing water supply, cleaning 40 gal. of water an hour using hollow-fiber filters that block anything larger than 20 nanometers from passing through. “We wanted something that could work both at a refugee-camp level but also where you have flooding and wildfires,” says chief brand officer Tara Lundy.

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