The compact, easy to carry Lifestraw Peak Personal is FDA, EPA and NSF P231 compliant. Built on technology familiar from the original Lifestraw, and better than ever! - 0.2 micron pore size removes nearly all bacteria, parasites (including giardia) and micro plastics - The filter has a service life of up to 4000 liters, if the water is relatively clean - BPA-free, chemical-free - Flow rate up to 1.7 liters / minute *Note!* A water filter or purifier tablets cannot remove the toxins created by algae bloom, and therefore do not make water containing said toxins safe to drink.