CompTIA Security+ Exam Prep

Answer: C - Halon gas is no longer used to interrupt the chemical reaction of fire due to it causing ozone depletion. Halon has not been manufactured since January 1, 1992, by international agreement. The Montreal Protocol banned halon in 1987 and countries were given until 1992 to comply with these directives. The most effective replacement for halon is FM-200, which is similar to halon, but does not damage the ozone.