DESIGN & DETAILS: Provides safe drinking water when filled up with water touching the earth to quench thirst in the wilderness Membrane microfilter protects against Bacteria, Parasites, microplastics, sand, dirt, and cloudiness Carbon filter reduces chlorine, odors, and organic chemical matter Membrane microfilter lasts up to 1000 gallons- or about 5 years of daily use Carbon filter lasts up to 26 gallons or two months daily use For every LifeStraw product purchased, a child in need receives safe drinking water for a year Comfortable silicon mouthpiece LifeStraw meets the highest standards of verified social and environmental performance, transparency, and accountability Made with durable and BPA Free materials 22 oz. capacity Technology and Standards: Meets NSF 42 standard for chlorine reduction Meets USA EPA & NSP P231 drinking water standards for the removal of bacteria and parasites Independently lab tested to meet drinking water protocols established by the US Environmental Protection Agency (EPA) and NSF International/ANSI LifeStraw 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 CARE INSTRUCTIONS: Dishwasher safe when filter is removed