Using new ultra-fine powder automatic fire extinguishing devices currently used new ultra-fine powder, Heptafluoropropane, such as carbon dioxide and water mist fire several ways, considering the fire extinguishing efficiency, toxicity, storage installation and site requirements, construction cost, life cycle costs and other indicators, after comparing all aspects, combined with the particularity required fire archives, the new all-submerged fine dry powder fire extinguishing system is preferred records storage. The fire extinguishing system, in May 2005 was listed as key national Torch Program, is the devaluation of the National Archives records storage extinguishing products.