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The Blackout Water Survival Straw is a portable hollow-fibre filter that cleans freshwater as you drink. It claims 0.01-micron filtration, removing 99.9999% of bacteria and 99.9% of protozoa, and lasts up to 1,800 gallons with no cartridges or batteries. It threads onto standard 28mm bottles, works as a direct straw, or hangs as a gravity filter, and weighs about 2 oz. That puts it in line with Sawyer and LifeStraw rivals: similar pore size and lifespan, but the 28mm threading and gravity option are extras many straws lack. It suits hikers, campers and emergency kits; it does not remove viruses or chemicals, so treat questionable water accordingly.
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The Blackout Water Survival Straw is a portable water filter for freshwater sources. It has a 0.01 micron filter that removes 99.9999% of bacteria and 99.9% of protozoa.
It uses two filtration stages: a hollow-fibre UF membrane and an activated carbon fibre filter. It needs no batteries and no replacement cartridges, and it has no expiry date. A backflush function makes maintenance easy.
You can drink through it directly as a straw, thread it onto a standard 28mm bottle, or hang it as a gravity filter. It weighs about 2 oz and is intended for emergency preparedness, camping, hiking and travel.
