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The LifeStraw Personal Water Filter is a straw-style filter you drink through directly from a lake, stream or tap. Its hollow-fiber membrane removes 99.999999% of waterborne bacteria and 99.999% of parasites like giardia and cryptosporidium, and it also cuts microplastics down to 1 micron. One unit is rated for 4,000 liters (1,000 gallons), far more than most squeeze filters of similar size. It suits hikers, campers and emergency kits that want a light, no-setup backup, but it can't push water into a bottle and it won't improve taste or remove viruses, so pump and squeeze filters beat it for group use and cloudy water.
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Owners treat it as a dependable, packable backup for clean-looking backcountry water. Reviewers like that it needs no setup and lasts a long time, but note slow flow, awkward drinking from low water and no way to fill a bottle.
The LifeStraw Personal Water Filter is a straw-style filter for drinking water from streams, lakes, ponds and other contaminated sources. It uses a microfiltration membrane and has no chemicals, no batteries and no moving parts to wear out. It has a high flow rate and weighs 2 oz.
The filter removes at least 99.9999% of waterborne bacteria (>LOG 6 reduction) and 99.9% of waterborne protozoan parasites (>LOG 3 reduction). It also removes microplastics down to 1 micron and filters to 0.2 microns. Claims are verified in laboratories using testing protocols set by the US EPA, NSF and ASTM for water purifiers.
With proper use and maintenance, it filters up to 4,000 liters (1,000 gallons) of water. It is made with BPA-free materials. A sealed storage bag is included for carrying it in a backpack or survival kit.
