| http://www.w3.org/ns/prov#value | - AAI Field Testing indicates SteriPEN Freedom was tested over a 30-day period during which it purified water in La Paz and the Cordillera Real, Bolivia. ???Conditions included glacial lakes, streams, outdoor wells, and city tap water.??????I feel that this is a great product, especially in a time when fresh drinking water can be an issue,??? says American Alpine Institute Guide and product tester,
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