Hydration Technology Innovations HydroPack Water Filter Forward osmosis filter requires no pumping, works in any virtually and water, even muddy water. Produces a sports drink for improved hydration. Meets or surpasses reductions for bacteria, viruses and cysts as specified by the EPA for water purifiers Easiest of our filters to use, simply put the HydroPack into the dirty water and it starts producing a clean drink. The highest purity level of any personal filter, non-clogging filter produces a sports drink for improved hydration.