Nasal Tube Airmen learn how to use a nasopharyngeal tube during a Self Aid Buddy Care course at Scott Air Force Base, Ill., Sept. 21, 2020. A nasopharyngeal tube is used when a person’s airway is blocked and they are unable to breathe on their own. SHARE: Download: Full Size (0.43 MB) Credit: Air Force Senior Airman Miranda Simpson VIRIN: 200921-F-HK519-1030C.JPG Photo Gallery