Air Bellows

Bellows Air Force Station (Bellows Field) is a United States military reservation located in Waimanalo, Hawaii. Once an important air field during World War II, the reservation now serves as a military training area and recreation area for active and retired military and civilian employees of the Department of Defense. It is operated by Detachment 1, 15th Mission Support Group of the 15th Airlift Wing based at Hickam Air Force Base.
Created in 1917 as the Waimanalo Military Reservation, the base was renamed Bellows Field in 1933 after Lt. Franklin Barney Bellows, a World War I war hero. Bellows Field was made a permanent military post in July 1941, and it was one of the airfields attacked during the attack on Pearl Harbor on December 7, 1941.
A bellows is a device for delivering pressurized air in a controlled quantity to a controlled location. Basically, a bellows is a deformable container which has an outlet nozzle. When the volume of the bellows is decreased, the air escapes through the outlet. A bellows typically also has a separate inlet and valves or flaps for ensuring that air enters only through the inlet and exits only through the outlet.