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 The combined expertise of Pyrene, Minimax and Read and Campbell have contributed to today's production techniques and have simplified designs resulting in the modern extinguisher which is lighter in weight, easier to handle and of greater efficiency than before. Seize & Squeeze 1975 In 1975, Chubb Fire launched their new range of extinguishers under the banner 'Seize and Squeeze'! These extinguishers, fitted with a new style of head, enabled them to be operated by simply withdrawing a pin and squeezing a lever, no matter which type of extinguisher in the Chubb range was being used. Previously, different operating methods were