Fresh Oxygen
Alvin Kaufman’s shelter was designed to keep him and his family of 4 safes for around 2 weeks. Some believe that nuclear fallout would lessen in 2 weeks time while others beg to differ. In the Kaufman/Otcaseks’ shelter, an air filter was there to receive fresh air. To have a shelter during the time of war is at the end of the day way safer than not having one at all.