The LifeStraw Personal Water Filter is a must for anyone that likes to be outdoors. It removes 99.999999% of bacteria (including E.coli, Salmonella), 99.999% of parasites (including Giardia and Cryptosporidium), and 99.999% of microplastics, dirt, sand and cloudiness. The membrane microfilter lasts up to 1,000 gallons (4,000 L) of water - this is enough drinking water to last a person for over 5 years! It has been lab tested, it's durable, BPA-free, has an unlimited shelf life and weighs less than 2 ounces. Your purchase impacts one child having safe water for one year (see video). Shop at Sawyer's Country Edge.