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Refrigeration & Air Conditioning Mechanic Red Seal · Question

Which category of refrigerants is known for having zero Ozone Depletion Potential (ODP) but high Global Warming Potential (GWP)?

HFCs (hydrofluorocarbons) like R-134a and R-410A have no chlorine, so they don't deplete ozone, but they are potent greenhouse gases.

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Question: Which category of refrigerants is known for having zero Ozone Depletion Potential (ODP) but high Global Warming Potential (GWP)?

Answer options:

  • CFCs
  • HCFCs ✅ HFCs
  • HFOs

Correct answer: HFCs

Explanation: HFCs (hydrofluorocarbons) like R-134a and R-410A have no chlorine, so they don't deplete ozone, but they are potent greenhouse gases.

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