LifeStraw Go incorporates award-winning technology into a refillable water bottle so you can carry safe drinking water with you on the go.Stop at a river, stream, or even a puddle. Fill up the bottle, screw on the lid, and sip filtered water through the mouthpiece.Uses advanced hollow fiber membrane technology to filter up to 264 gallons or 1,000 liters of water to 0.2 micronsRemoves 99.9999% of waterborne bacteria, including E. coli and salmonella and 99.9% waterborne protozoa, including Giardia and Cryptosporidium