For what is designed LifeStraw Go Water Bottle with Filter? Travel and everyday use Anyone looking for convenient, healthier, hydration on the go LifeStraw Go Water Bottle with Filter is an advanced water bottle with filter that protects against bacteria, parasites, microplastics, chemicals, like chlorine, and improves water taste. The BPA-free bottle is ideal for travel and everyday use. Simply fill with water from a lake, river or tap and filter on the go. LifeStraw filters are rigorously tested to meet protocols established by the US Environmental Protection Agency (EPA) and NSF International/ANSI. LifeStraw Go Water Bottle with Filter protects against: 99.999999% of bacteria 99.999% of parasites 99.999% of microplastics Silt, sand, and cloudiness greater than 0.2 micron Chlorine & organic chemical matter to improve taste.