Abstract: An oxygen absorbing fire suppression system comprises oxygen absorbing material for absorbing oxygen from ambient air within an enclosed space. A housing prevents the oxygen absorbing material from exposure to the ambient air outside the housing. The housing has at least one opening for exposing the oxygen absorbing material to the ambient air, and at least one seal is provided proximate the at least one opening to prevent the oxygen absorbing material from exposure to the ambient air. An actuating component removes at least a portion of the at least one seal to expose the oxygen absorbing material to the ambient air. The oxygen absorbing material is configured to lower an oxygen concentration within the enclosed space to a level that extinguishes fire.