What class refrigerant is 134A?

Refrigerant R-134A is classified as a hydrofluorocarbon (HFC). It is widely used in air conditioning and refrigeration systems as a replacement for ozone-depleting substances like R-12. R-134A has a low ozone depletion potential (ODP) and is considered a more environmentally friendly option compared to older refrigerants. However, it still has a global warming potential (GWP) that has led to discussions about its eventual phase-out in favor of more sustainable alternatives.