Blast shelter
![Replica of the "Fat Man" nuclear bomb dropped on Nagasaki, Japan, on August 9, 1945](/Images/godic/202412/31/Fat_man1338.jpg")
![Blast doors in a missile control bunker at Minot Air Force Base, North Dakota.](/Images/godic/202412/31/Blast_door_minot_AFB,_ND1338.JPG")
![The 25-ton blast door in the Cheyenne Mountain nuclear bunker is the main entrance to another blast door (background) beyond which the side tunnel branches into access tunnels to the main chambers.](/Images/godic/202412/31/NORADBlast-Doors1338.jpg")
![Door of a light civil defence shelter in Finland](/Images/godic/202412/31/Väestönsuojan_ovi1338.jpg")
A blast shelter is a place where people can go to protect themselves from bomb blasts. It differs from a fallout shelter, in that its main purpose is to protect from shock waves and overpressure, instead of from radioactive precipitation, as a fallout shelter does. It is also possible for a shelter to protect from both blasts and fallout.