Refrigerants are what make air conditioning possible. Contained within the coils of an air conditioner, these liquid agents cool and dehumidify indoor air. For years, the most common refrigerant used in air-conditioning systems was R22 refrigerant. In response to growing environmental concerns, production of systems using R22 refrigerant is being phased out. Bingcool has led the way in the manufacture of cooling systems that use chlorine-free R-410A refrigerant. Because R410A refrigerant contains no chlorine, it is considered ozone-friendly. Additional benefits Bingcool' highest efficiency cooling systems are designed to use R410A refrigerant, therefore providing an economic benefit in addition to the environmental benefit. Bingcool' R-410A systems are also known for improved reliability, quieter operation, improved dehumidification and enhanced heat pump performance.