With Grayl's GEOPRESS Water Purifier on hand, you'll be able to brave nearly any water source without fear of poor hygiene or taste, and without wasting time. This press-action purifier lets you clean 24 ounces of water in as little as 8 seconds, while eliminating bacteria, viruses, protozoa, chemicals, and heavy metal sediment. The TopoGrip body offers a secure grip while you fill the outer container, and Softpress pads on the lid keep your hands comfortable while you press it against any surface to fill the inner container with purified water.