Which type of refrigerant is known to be more environmentally friendly?

The refrigerant R-1234yf is recognized as more environmentally friendly primarily due to its lower global warming potential (GWP) compared to other refrigerants. It has a GWP of just 4, which is significantly lower than that of many traditional refrigerants. This characteristic makes R-1234yf a suitable alternative for automotive applications, especially since automotive air conditioning systems have increasingly shifted towards more sustainable options in response to environmental regulations.

In addition to its low GWP, R-1234yf is also non-ozone depleting, meaning it does not contribute to ozone layer depletion, which is a critical environmental concern linked to climate change and ultraviolet radiation exposure. This combination of low GWP and zero ozone depletion potential (ODP) positions R-1234yf as a leading choice in the move toward greener refrigerant options.

Other refrigerants listed, such as R-134a, R-22, and R-404A, have higher GWPs and associated environmental impacts. Transitioning to refrigerants like R-1234yf reflects the industry's commitment to reducing ecological footprints and adhering to evolving environmental standards.