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SOUTHWEST ASIA -- Maj. Philip Goff attaches an air separator filter assembly to an air sampler. As a bioenvironmental engineer at a forward-deployed location, Major Goff compiles long-term environmental health data gathered from air samples for the 386th Air Expeditionary Wing. Air sampler collects pathogens, pollen and man-made pollutants that can be measured and documented to predict and prevent illness trends. Major Goff, of the 386th Expeditionary Medical Group, is deployed from McGuire Air Force Base, N.J. (U.S. Air Force photo by Master Sgt. Al Gerloff)