Inventors produce potable water from human sweat

A Swedish engineer has designed a machine that wrings the moisture out of sweaty clothes and turns it into water that is filtered and drinkable. The "sweat machine," designed to draw attention to a UNICEF clean water campaign, uses a technique known as "membrane distillation" that purifies water at the molecular level by streaming it through a Gore-Tex-like filter.

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Independent (London) (tiered subscription model), The

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