Car fire extinguisher, BCF type model P63, grey cylinder, by Chubb Fire Security Ltd Sunbury on Thames, Middlesex, with 12 ounce charge, pat no 1001993, reg design 911544, with bracket

BCF was the brand name for the chemical Bromochlorodifluoromethane as produced by the British manufacturer ICI. Also known as Halon, BCF was a popular fire extinguishing medium as the gas would vaporise and leave little to no residue, providing protection to equipment that would likely be damaged by other extinguishers.

However, it was found to be highly damaging to the ozone-layer and was banned in 1993, although existing extinguishers could be recharged with recycled BCF until the end of 2002. There are a few exceptions to the ban for certain uses, such as military use, aircraft industry uses, and within the channel tunnel, because of the reduced damage level it causes.

This model was produced for use in cars, at a handheld size with a bracket to attach it somewhere inside the vehicle. The standard colour for BCF extinguishers was usually green, by Chubb produced them in grey.