Ultra filter cleans up

A plastic water bottle with an ultra filtration system is able to process and remove even the smallest viruses from dirty water

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The “Lifesaver” bottle was invented and developed in the UK by Michael Pritchard, after seeing the serious problems caused by the lack of safe drinking water in the wake of the 2004 Tsunami and Hurricane Katrina.
Darren King, of Lifesaver Systems says: “It filters down to 15nm, while the smallest virus is 25nm across.”
In use, the bottle is filled up from the base, part of which is then used to press the water through the pre-filter and ultra filter by way of a piston. A unit with a cartridge capable of processing 4,000 litres of water sells for £195 while one capable of processing 6,000 litres of water sells for £230.
King says: “Ultimately the filter will stop working and you will notice a reduction in the flow.”
The bottles weigh 630g empty and are made in Newcastle. The idea was recently voted “Best technological development for future soldier system enhancement” by Soldier Technology 2007. Judging by the crowd round the stand, it aroused immense interest at the recent DSEi show.
www.lifesaversystems.com

Author
Tom Shelley

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