http://www.ted.com/talks/michael_pritchard_invents_a_water_filter.html

http://www.ted.com/talks/michael_pritchard_invents_a_water_filter.html

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• TED: Michael Pritchard Turns Filthy Water Drinkable

  Too much of the world lacks access to clean drinking water. Engineer Michael Pritchard did something about it -- inventing the portable Lifesaver filter, which can make the most revolting water dri..

  michael pritchard ted drinkable lifesaver drinking water engineer demo [»]

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