Suitable for most outdoor water sources and tap water.
Removes 99.99% of bacteria (e.g. E. coli, Salmonella) and 99.94% of protozoan cysts (e.g. Giardia, Cryptosporidium). Filters many chemicals (e.g. chlorine, iodine) and heavy metals (e.g. lead, arsenic) that affect health, flavor and odor. Tested according to NSF/ANSI standards 42 + 53.