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LifeStraw

43 bytes removed, 07:36, 13 July 2010
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[[Image:CAWST_BiosandLifeStraw.pngjpg|thumb|right|150px| Cross-section through a concrete biosand filterLifeStraw]]
LifeStraw® is a portable simple filtration device, which measures around 25 cm long and 29 mm in diameter, and filters up to 700 litres of water.
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