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
Chubb Fire Chubb Fire Chubb Fire & Security is a fire and security business. It is owned by United Technologies Corporation. Read and Campbell, the oldest company of those which came together to form Chubb Fire Security Limited. Their invention of the CO2 Cartridge to expel the contents of a fire extinguisher is still today the most common method in use. Read and Campbell are mainly remembered for their 'Waterloo' and 'Petrolex' brand extinguishers. 1881 Two Scottish engineers,Messrs Read and Campbell, who had been bridge building in Argentina formed a company, Aerators Ltd., to make carbon dioxide and gas cylinders. They formed