This personal water filtration straw removes 99.999% of parasites (including Giardia and Cryptosporidium), 99.999999% of bacteria (including E. coli), and 99.999% of microplastics while also reducing turbidity (silt, sand, and cloudiness). The straw delivers a high flow rate, features an easy-grip design, and is ultra versatile. A removable bottom cap with threading allows for use with most standard water bottles, and a hose attachment connects to gravity systems. BPA-free. Meets US EPA and NSF P231 drinking water standards for the removal of bacteria and parasites.