World Water Day: Five ways to purify your water One of the better known products is the LifeStraw, which was invented in 1994 when company Vestergaard was asked to develop a filter that could remove Guinea worm larvae from water it was contaminating. In 2005 it created a personal “straw-like ...

Amazon.com : LifeStraw Personal Water Filter : Camping ... A Time Magazine Invention of the Year winner, LifeStraw contains no chemicals, no batteries and no moving parts to wear out. It features a high flow rate and weighs ...