Fire extinguishers and fire suppression systems and components thereof, which extinguishes fire within confined spaces, comprised of one or more generators which produce a clean agent gas, nitrogen (N2) or carbon dioxide (CO2), at ambient temperature, when activated by one or more fire detection sensors or a fire detection system; electric or electronic sensors for heat, optic, fire, and temperature; fire and smoke detectors; electric or electronic sensors for detecting flames; temperature se...