Modules were furnaces within overflow camps in which category one patients, who were deemed dead, were burned.
File:Screen shot 2011-08-06 at 3.14.45 PM.png
A Module burning category one patients. (TV: The Categories of Life)
Colin Maloney trapped Vera Juarez within one and burned her to prevent her from leaking information about conditions at the San Pedro Overflow Camp. (TV: The Categories of Life)
Geraint Cooper was scheduled to be incinerated inside a module; he had suffered from a fatal heart attack. However, Geraint was rescued by his daughter Gwen, who later blew another module up. (TV: The Middle Men)