The PureFlow Emergency Water Filter Straw is a personal, straw-style filter for drinking from lakes, streams, taps or stored water when safe water is not available. It claims to remove 99.9% of bacteria and protozoa down to 0.01 microns, which puts its filtration in line with hollow-fiber straw filters from Sawyer and LifeStraw. It suits hikers, campers and emergency-kit builders who want a light backup they can drink through directly. It does not remove viruses, chemicals, salt or heavy metals, so it is a biological filter rather than a purifier.
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Owners rate it highly as a compact backup filter that works when they need it. Most praise the size and the simple drink-through design. Complaints center on slow flow in dirty or cold water and the need to backflush.
The PureFlow Emergency Water Filter Straw is a water filter straw for making drinking water safe in emergencies or on outdoor adventures.
It removes 99.9% of bacteria and protozoa, filtering down to 0.01 microns.
