Why is Halon 1211 no longer manufactured?
by 
extinguisher
ANSWERS: 1
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Halons 1211 and 1301 were once used extensively in fire protection systems and extinguishers. The use of halon has been discontinued in most circumstances because they damage the ozone layer. Although less well known than CFC's, halons are much more destructive: The 80 grams of CFC in a domestic refrigerator could destroy up to 3 tonnes of atmospheric ozone. The 1.4 kilograms of halon 1211 in a yellow hand-hand extinguisher could destroy about 20 tonnes of atmospheric ozone. That's the equivalent of 500 dairy tankers full of ozone.
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