647 CES holds chemical, biological, radiological and nuclear defense refresher course

U.S. Air Force Airman 1st Class William Dobyns, 647th Civil Engineer Squadron emergency management journeyman, teaches Airmen how to dismantle their assigned gas masks during a chemical, biological, radiological and nuclear defense course on Joint Base Pearl Harbor-Hickam, Hawaii, August 21, 2025. In emergency management, CBRN specialists perform response operations, warning and reporting to support critical missions, ensuring the safety and security of personnel and equipment. (U.S. Air Force photo by Airman 1st Class Aden Brown)

PHOTO BY: Airman 1st Class Aden Brown

VIRIN: 250821-F-HW521-1039.JPG

FULL SIZE: 5.23 MB

Additional Details

CAMERA

NIKON Z 9

LENS

NIKKOR Z 24-70mm f/2.8 S

APERTURE

28/10

SHUTTERSPEED

1/200

ISO

2500

IMAGE IS PUBLIC DOMAIN

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.

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