Airmen assigned to the 920th Aeromedical Staging Squadron, 920th Rescue Wing, use a pocket bag valve mask on a medical manikin during a Basic Life Support class at Patrick Space Force Base, Florida, Dec. 3, 2023. A pocket bag valve mask is a device used by healthcare professionals to provide ventilation to a person who is not breathing or having trouble breathing. The 920th ASTS is comprised of personnel with a wide variety of medical Air Force Specialty Codes who provide physical exams, immunizations and occupational safety support to 920th RQW Airmen. (U.S. Air Force photo by Tech. Sgt. Lauren M. Snyder