Removes 99.999999% of bacteria (including E.coli, Salmonella), 99.999% of parasites (including Giardia and Cryptosporidium), 99.999% of microplastics, dirt, sand and cloudiness Ultralight and durable, the LifeStraw weighs less than 2 ounces (46 g) so you can pack it anywhere Long-lasting membrane microfilter lasts up to 1,000 gallons (4,000 L) of water - enough drinking water to last an individual for over 5 years! Be prepared with the ultimate survival tool, the LifeStraw has an unlimited shelf life and has been tested all over the globe to face the harshest conditions Your purchase has impact: one purchase, one child, one year of safe water