R 12 was the first type of mainstream refrigerant on the market.
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2018 early refrigerators used a variety of potentially unpleasant and dangerous chemicals for refrigerants for example ammonia and sulphur dioxide.
In the 1950s r 22 became popular and eventually became the main refrigerant to use in home and commercial air conditioning units.
The two most common cfcs and hcfcs are r 12 and r 22 refrigerant.
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It took place of other more difficult to use refrigerants such as carbon dioxide.
About 31 of these are car fridges 12 are refrigerators and 1 are refrigeration equipment.
A wide variety of frost free refrigerator cfc free options are available to you.