Official websites use .mil
Secure .mil websites use HTTPS
U.S. Air Force Staff Sgt. Gerald Leon Guerrero, 379th Expeditionary Civil Engineer heating ventilation and air conditioning craftsman throws a line down for nitrogen gas to Airman 1st Class Cesar Avalos, 379th ECES heating ventilation and air conditioning journeyman, at Al Udeid Air Base, Qatar, Aug. 28, 2014. The nitrogen gas is used to find the source of where there may be a break in cool air. Leon Guerrero is from Tamuning, Guam, and is deployed from Cannon Air Force Base, New Mexico. Avalos is deployed here from Travis Air Force Base, California, and hails from Yuma, Arizona. (U.S. Air Force photo by Staff Sgt. Ciara Wymbs/Released)
CAMERA
N/A
LENS
APERTURE
SHUTTERSPEED
ISO
No camera details available.
This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit. Further, any commercial or non-commercial use of this photograph or any other DoD image must be made in compliance with guidance found at https://www.dimoc.mil/resources/limitations, which pertains to intellectual property restrictions (e.g., copyright and trademark, including the use of official emblems, insignia, names and slogans), warnings regarding use of images of identifiable personnel, appearance of endorsement, and related matters.