Name a common low-GWP automotive refrigerant and its safety classification.

Name a common low-GWP automotive refrigerant and its safety classification.

• A. R-134a, A1
• B. R-1234yf, A2L
• C. R-1234ze, A1
• D. R-32, A2L

Answer: (B)

In automotive cooling, the goal is to reduce environmental impact while keeping performance and safety workable. The common low-GWP option for cars is R-1234yf, and its safety classification is A2L. R-1234yf has a very low global warming potential (GWP around 4), making it a stark contrast to older R-134a, which has a GWP over 1,000. The A2L label means the refrigerant is mildly flammable and has low toxicity, so handling it requires appropriate precautions and equipment designed for mildly flammable refrigerants. The other choices don’t fit as the typical automotive pairing: R-134a has a high GWP, so it isn’t considered low-GWP; R-1234ze, while also low-GWP, isn’t the standard automotive refrigerant; and R-32 has a higher GWP and isn’t the common automotive choice.

In automotive cooling, the goal is to reduce environmental impact while keeping performance and safety workable. The common low-GWP option for cars is R-1234yf, and its safety classification is A2L. R-1234yf has a very low global warming potential (GWP around 4), making it a stark contrast to older R-134a, which has a GWP over 1,000. The A2L label means the refrigerant is mildly flammable and has low toxicity, so handling it requires appropriate precautions and equipment designed for mildly flammable refrigerants.

The other choices don’t fit as the typical automotive pairing: R-134a has a high GWP, so it isn’t considered low-GWP; R-1234ze, while also low-GWP, isn’t the standard automotive refrigerant; and R-32 has a higher GWP and isn’t the common automotive choice.