A chemical that produces a refrigerating effect while expanding and vaporizing. Most residential air conditioning
systems contain R-22 refrigerant. R-22 is regulated under the Montreal Protocol and in the United States by the
Environmental Protection Agency. R-22 is scheduled to be in production until the year 2020.
« Back to Glossary IndexAir conditioning is an essential amenity for any home. As the temperatures rise, people depend on their AC systems to stay