Staff Sgt. Jakob Powers, 54th Operations Squadron air traffic controller, works on his 3-D face-covering extender model before printing the device at his residence in Alamogordo, N.M., on April 16, 2020. During his downtime, Powers print 3-D face-covering extenders and face-shield frames to provide safety and comfort to essential personnel such as hospital workers, firefighters and police officers. (U.S. Air Force photo by Senior Airman Collette Brooks)