R22 refrigerant, also known as Freon or HCFC-22, is a chlorofluorocarbon compound used in air conditioners and refrigerators. It was commonly used in the past, but its production has been phased out due to its damaging effect on the Earth's ozone layer. There are still many appliances that use R22, so it is important to know how it works and what alternatives are available.
R22 is a colorless, odorless gas that is compressed into a liquid for use in air conditioners and refrigerators. When released into the atmosphere, it quickly evaporates and breaks down into other chemicals that contribute to ozone depletion. R22 has a high global warming potential, meaning it contributes to climate change even when released in small amounts.
While there are some alternatives to R22 available, they are often more expensive and may not be compatible with existing equipment. The best way to avoid using R22 is to purchase new air conditioning and refrigerator units that do not use it. You can also check the labels of your existing appliances to see if they can be retrofitted with an alternative refrigerant.