LifeStraw Community Hollow Fiber Filter Hollow fiber filtration Technology converts contaminated water into safe drinking water Removes a minimum of 99.9999% of bacteria, 99.999% of Viruses and 99.99% of protozoan Parasites Reduces turbidity (muddiness) by filteringparticulate matter larger than 0.02 Microns Can purify between 70,000 -100,000 liters of water, enough to serve community settings for Several years Doesn't require Electrical power or batteries