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A hollow-fiber membrane straw you drink through directly from lakes, streams, taps or questionable sources. It claims removal of 99.999999% of bacteria, 99.999% of parasites and microplastics down to 1 micron, with a filter life of up to 4,000 liters. It suits hikers, travelers and emergency-kit builders who want a pocket-sized backup. Against pump filters and gravity systems it is lighter and cheaper to run, but it cannot filter viruses, chemicals or salt, and it gives you no way to store water.
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The Personal Water Filter Straw is a portable drinking-water filter. It removes bacteria, parasites and microplastics from water sources, so you can drink from them directly. It uses a microfiltration membrane.
The filter removes 99.999999% of bacteria, including E. coli and salmonella. It removes 99.999% of parasites, including giardia and cryptosporidium. It filters microplastics down to 1 micron and reduces turbidity down to 0.2 microns. Filtration claims were tested using US EPA, NSF and ASTM protocols.
One filter provides up to 4,000 litres (1,000 gallons) of drinking water with proper use and maintenance. The compact straw design fits in a backpack, pocket or emergency kit.
