LifeStraw Portable Water Filter Hiking Camping Travel FiltrationRemoves bacteria & parasites: The microfiltration membrane removes 99. 999999% of waterborne bacteria (including E. coli and salmonella), and 99. 999% of waterborne parasites (including giardia and cryptosporidium). Removes microplastics: Removes the smallest microplastics found in the environment (down to 1 micron), and reduces turbidity down to 0. 2 microns. Rigorous Testing: All claims are verified with laboratories using standard testing protocols