| abstract |
A portable water filter including a plurality of different filter medias. One embodiment includes two filter exhibiting a synergistic effect on filtration. Another embodiment provides higher than normal pH water to simply removal; of dissolved metals. Still another embodiments meets specified performance parameters. The filters are usable in hand held water purifiers, gravity feed filtration systems, and personal hydration systems. The water filter is lightweight to facilitate being carried in the field by a person for extended periods. |