Featuring an EPA approved “clean” extinguishing agent, the HalGuard™ Automatic Fire Suppression System from H3R Performance, Inc., provides around the clock protection for transport trailers, garages or repair shops. The system consists of a steel cylinder charged with a unique, non-toxic, non-conductive and non-corrosive clean agent gas, capped with one of four thermally actuated heads. When the head detects an ambient temperature higher than its rating, the system activates to rapidly discharge the clean agent to flood the space with an inert and invisible gas, which extinguishes the fire.