AFRL Field-Tests New Water Purification Device Published Feb. 13, 2009 By Captain Mary Stief HQ AFRL WRIGHT-PATTERSON AIR FORCE BASE, Ohio -- AFRL worked with Seldon Technologies to develop filtration technology that transforms groundwater into potable water without electricity, ultraviolet light, harsh chemicals, or prolonged heating. The lab distributed this purification capability--in the form of two different devices--to Fort McCoy, Wisconsin, for field testing. Both devices employ enmeshed carbon nanotube filters to remove bacteria, viruses, endotoxins, and other molecular contaminants (e.g., heavy metals, halides). The WaterBox™ can clean up to 1,200 gallons at 1 gallon/minute, making it suitable for supplying entire units. Meanwhile, the smaller, lighter-weight WaterStick™ is ideal for personal use, offering a 70-gallon cleaning capacity and incorporating easily into individual hydration backpacks. In addition to being field-tested for ruggedness and operability on Fort McCoy ranges, both variations underwent evaluation during the National Guard Patriot 2008 exercise.