The chemical name of perfluorohexanone is perfluoro-2-methyl-3-pentanone , It is liquid at room temperature, colorless and odorless, easy to volatilize, and has high fire extinguishing efficiency. It can effectively extinguish the initial fire. It is a clean gas fire extinguishing agent. Its ozone depletion potential value(ODP) is 0, and the global greenhouse effect potential value(GWP)is1, and the atmospheric survival life is 0.014years span>(5days), a long-term replacement for halon (Halon< span>), hydrofluorocarbons and perfluorinated compounds.