R22, commonly referred to as HCFC-22, has long been one of the most widely used refrigerants in residential and commercial air conditioning systems. Although new production has been reduced under environmental regulations, R22 continues to play an important role in the service, repair, and ongoing maintenance of existing equipment. Known for its stable performance and broad compatibility with older systems designed for R22, it remains a practical choice for keeping legacy HVAC units operating efficiently and reliably.
