LifeStraw is a water filter designed to be used by one person to filter water so that they may safely drink it. It filters a maximum of 1000 litres of water, enough for one person for one year.
It removes 99.9999% of waterborne bacteria and 99.9% of parasites. The LifeStraw Family, a larger unit designed for family use, also filters out 99.99% of viruses.
LifeStraw includes LifeStraw and LifeStraw Family, which are complementary point-of-use water filters designed by the Swiss-based Vestergaard Frandsen for people living in developing nations and for distribution in humanitarian crisis. LifeStraw Family filters a maximum of 18,000 liters of water, providing safe drinking water for a family of five for up to three years. LifeStraw and LifeStraw Family were distributed in the 2010 Haiti earthquake, 2010 Pakistan floods, and 2011 Thailand floods.
The LifeStraw is a plastic tube 310 millimeters long and 30 millimeters in diameter,Water that is drawn up through the straw first passes through hollow fibers that filter water particles down to 0.2 microns across, using only physical filtration methods and no chemicals.[ The entire process is powered by suction, similar to using a conventional drinking straw, and filters up to 1000 liters of water.While the initial model of the filter did not remove Giardia lamblia,LifeStraw removes a minimum of 99.9% of waterborne protozoan parasites including giardia and cryptosporidium.