Protects against 99.999999% of bacteria (including E.coli, Salmonella), 99.999% of parasites (including Giardia and Cryptosporidium), 99.999% of microplastics, chlorine, organic chemical matter, silt, sand, and cloudiness; improves taste , Long-lasting membrane microfilter lasts up to 1,000 gallons (4,000 L) and the activated carbon filter lasts up to 26 gallons (100 L) of water with proper use and maintenance , Durable and BPA Free, independently lab tested to meet drinking water protocols established by the US Environmental Protection Agency (EPA) and NSF International/ANSI , 22oz capacity. Every fill avoids the need for single use plastic bottled water! Easy to use, easy to clean bottle and cap are dishwasher safe once the filter is removed. , Your purchase has impact: one purchase, one child, one year of safe water.