NSA in the USA also makes an antimicrobial filter containing silver
impregnated charcoal.
Ode

At 04:20 AM 8/22/2003 -0700, you wrote:
>> It's a custom to boil the water, or use a Turmix Katadyn filter...
>> Do you know what's inside the filter? Silver granules!---Alex
>Thanks, Alex, this seems to be a popular product:
>"List of longterm Katadyn users:
>International Red Cross, World Health Organization, Armed Forces
>Switzerland, Germany, USA, Portugal, US Navy Seals, US Forest Service,
>National Park Service, United Nations, Federal Bureau of Investigation,
>Drug Enforcement Administration, Swiss Tropical Institute"
>http://www.katadyn.net/index.shtml
>jr
>
>
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