Dust cloud
Senior Airman Cody Hill, 332nd Expeditionary Communication Squadron operations flight member, uses canned air to clean the inside of a desktop computer at an undisclosed location in Southwest Asia, March 12, 2012. Dust buildup can cause computer fans to seize, which can lead to damage of critical components. Hill is deployed from Ramstein Air Base, Germany, and is a native of Van Alstyne, Texas. (U.S. Air Force photo by Staff Sgt. Joshua J. Garcia)