HFO stands for hydrofluoro olefin. Opteon YF (HFO-1234yf) is a low global warming potential (GWP) refrigerant for use in automotive air-conditioning systems. Opteon YF (HFO-1234yf) has a chemical structure of CF3CF= CH2 2,3,3,3-tetrafluoropropene.
Low GWP; GWP = 4
Zero ozone-depletion potential
Low total contribution to climate change
Same operating pressures as current HFC-134a system