Suppression Systems Fire suppression systems use a combination of dry chemicals and/or wet agents to suppress fires in areas which may be left unattended for periods of time. Most commonly used in environments with heavy power equipment, these systems provide a rapid response to a developing fire without causing damage to your equipment. Types of Gaseous Fire Suppression Systems There are two main types of gaseous fire suppression systems comprising inert gas and chemical agents. The main agents that are encountered today include: Inergen Argonite FM 200 Novec 1230