U.S. Air Force Staff Sgt. Misty Richmond, 52nd Aerospace Medicine Squadron public health technician, checks the temperature of sanitation solution at the Mosel Dining Hall at Spangdahlem Air Base, Germany, May 12, 2020. The water that holds solution must be at a certain temperature to increase the activity of the solution and be effective. The ideal temperature is between 75 and 120 degrees fahrenheit for the solution to work properly. (U.S. Air Force photo by Senior Airman Jovante Johnson)