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 tasteLong-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 maintenanceDurable and BPA Free, independently lab tested to meet drinking water protocols established by the US Environmental Protection Agency (EPA) and NSF International/ANSI22oz 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 removedYour purchase has impact: one purchase, one child, one year of safe waterLifeStraw is proud to be a B Corp and Climate Neutral Certified brand, committed to meeting the highest standards of verified social and environmental performance, transparency and accountability