Used primarily as a fire extinguishing agent, particularly in situations where water or other agents may be ineffective or damaging. It is effective in suppressing fires involving flammable liquids, electrical equipment, and other high-risk materials due to its ability to interrupt the combustion process. Additionally, it has been utilized in the aerospace industry for fire suppression in aircraft and spacecraft. Its use has declined due to environmental concerns, particularly its ozone-depleting potential, leading to restrictions under international agreements like the Montreal Protocol.