Fire extinguisher older models also achieved class B and C fire-fighting capability in the past, current models are rated A:K (Amerex, Ansul, Buckeye and Strike First) or K only (Badger/Kidde). Clean agents extinguish fire by displacing oxygen (CO or inert gases), removing heat from the combustion zone (Halotron-1, FE-36, Novec 1230) or inhibiting the chemical chain reaction (Halons). They are referred to as clean agents because they do not leave any residue after discharge which is ideal for protecting sensitive electronics, aircraft, armored vehicles and archival storage, museums, and valuable documents. Halon was completely banned in Europe and Australia except for critical
Munich Fire Department (nominal staffing 1/1/10/12), consisting of a command vehicle 1, an aerial ladder with basket 23-12, a rescue fire engine 20/16 and a tank fire engine 24/48 are housed at the fire station. Furthermore, a special extinguisher vehicle, a small alert car and the emergency response vehicle, as well as an ambulance are stationed here. The station is also assigned an emergency ambulance vehicle, which is not stationed at the fire station, but at the Surgical Clinic Munich South (see below: emergency medical service). Furthermore, an ambulance is occupied together with the fire station 7 at the "Klinikum Dritter Orden". Fire