1st generation refrigerants Chlorofluorcarbons (CFCs)
2nd generation refrigerants Hydrochlorofluorocarbons (HCFCs)
3rd generation refrigerants Hydrofluorocarbons (HFCs)
4th and current generation refrigerants Hydrofluoro-olefins (HFO)
HFOs have low global warming potentials, typically under 150. Many of them, however are also classified as A2L refrigerants (mildly flammable) and industry needs to adapt its practices to maintain a high level of safety.
Refrigerants Australia was a participant in an Australia-wide series of education programs that began in 2016 to prepare the market for safe and efficient use of these refrigerants