Senior Airman Craig Martin, 455th Expeditionary Aircraft Maintenance Squadron fuels system specialist, at Bagram Airfield, Afghanistan, May 24, 2016. Martin ensures maintenance crews have the proper tools to repair and maintain aircraft. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)

Senior Airman Craig Martin, 455th Expeditionary Aircraft Maintenance Squadron fuels system specialist, adjusts a 3M 7800 respirator at Bagram Airfield, Afghanistan, May 24, 2016. The respirator uses 3M 6001 organic vapor cartridges to keep fuels system specialist safe while dealing with jet fuel. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)

Senior Airman Craig Martin, 455th Expeditionary Aircraft Maintenance Squadron fuels system specialist, examines repair tools during an inventory inspection at Bagram Airfield, Afghanistan, May 24, 2016. Martin checks all tools maintenance uses to repair aircraft at Bagram. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)

Senior Airman Craig Martin, 455th Expeditionary Aircraft Maintenance Squadron fuels system specialist, walks towards equipment storage at Bagram Airfield, Afghanistan, May 24, 2016. Martin inspects fuel cells and tanks for foreign objects, corrosion, cell deterioration and fungus. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)

Senior Airman Craig Martin, 455th Expeditionary Aircraft Maintenance Squadron fuels system specialist, inspects a 3M 7800 respirator at Bagram Airfield, Afghanistan, May 24, 2016. Martin inspects the respirator for cracks or malfunctions to ensure his safety while dealing with jet fuel. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)

Senior Airman Craig Martin, 455th Expeditionary Aircraft Maintenance Squadron fuels system specialist, wears a 3M 7800 respirator at Bagram Airfield, Afghanistan, May 24, 2016. Fuel systems specialists use the respirator to breath in fresh oxygen while in the C-130J Super Hercules fuel tanks because without it, it would lead to nausea, dizziness, headaches, etc. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)

Senior Airman Craig Martin, 455th Expeditionary Aircraft Maintenance Squadron fuels system specialist, gets into a locker to retrieve a 3M 7800 respirator at Bagram Airfield, Afghanistan, May 24, 2016. Fuel systems specialists use the respirator to breath in fresh oxygen while in the C-130J Super Hercules fuel tanks during repairs. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)