Fire extinguisher had been developed by DuPont and the US Army in 1954. Both 1211 and 1301 work by inhibiting the chain reaction of the fire, and in the case of Halon 1211, cooling class A fuels as well. Halon is still in use today but is falling out of favor for many uses due to its environmental impact. Europe and Australia have severely restricted its use, since the Montreal Protocol of 1987. Less severe restrictions have been implemented in the United States, the Middle East, and Asia. Internationally there are several accepted classification methods for hand-held fire extinguisher. Each classification is
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