Sponsored by Sensirion IncFeb 1 2021 In recent years, the utilization of a number of common refrigerants has been restricted in order to reduce environmental impact. The Heating, Ventilation, Air Conditioning and Refrigeration (HVACR) industry are subjected to growing pressure to choose refrigerants carefully. They are leaving behind widely-used hydrofluorocarbons (HFCs) in favor of refrigerants with lower Global Warming Potential (GWP). Revised leakage detection technologies are needed for the safe employment of these relatively new refrigerants. These safety requirements are codified by new standards (such as UL 60335-2-40 3rd edition and IEC-60079-29-1). These new requirements will be added to building standards for residential and commercial air-conditioning equipment as early as 2025, following the latest decision from the California Air Resources Board (CARB).