Fairchild Airmen perform first test of new chemical defense mask on KC-135
Airman 1st Class Jeremiah Guinto, 92nd Air Refueling Squadron boom operator, reviews a task checklist during the first in-field use and test of the new Joint Service Aircrew Mask on a KC-135 at Fairchild Air Force Base, Washington, July 17, 2018. The development of the JSAM contributes to the continuous investments in Mobility Air Force capabilities and readiness, which is essential to ensuring the Air Force maintains range, speed and agility advantages over potential adversaries, and in support of global mobility operations. (U.S. Air Force photo/ Airman 1st Class Whitney Laine)

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Photo by: Airman 1st Class Whitney Laine |  VIRIN: 180717-F-PG301-301.JPG