Which of the following refrigerants is being introduced to replace R-410A?

R-32 is being introduced as a potential replacement for R-410A due to its lower global warming potential (GWP). As environmental regulations become stricter, there is a growing emphasis on refrigerants that have less impact on climate change. R-32 has a GWP of approximately 675, which is significantly lower than that of R-410A, making it a more sustainable choice for cooling systems.

In addition to its lower GWP, R-32 delivers efficient cooling performance, which makes it suitable for use in residential and commercial air conditioning systems. As a single-component refrigerant, R-32 is easier to handle and has a lower flammability risk compared to some other options, which is another reason the industry is considering it as a standard for future systems.

Other refrigerants listed, such as R-22, R-134A, and R-404A, either have higher GWP values or phase-out timelines that make them unsuitable as replacements for R-410A in efforts to comply with international agreements aimed at reducing greenhouse gas emissions.