Heptafluoropropane is a colorless, odorless, non-conductive gas that leaves no solid or liquid residue after extinguishing a fire. Its chemical formula is CF3CHFCF3, its molecular weight is 170, and its density is approximately six times that of air. Its extinguishing mechanism is a chemical chain reaction, and it also has cooling and oxygen-reducing effects. Its extinguishing mechanism and efficiency are similar to those of halon "1301," and it provides effective extinguishing for both Class A and Class B fires.