HVAC Excellence Electrical Certification Practice Exam

HFO, or Hydrofluoroolefin, is recognized as a more environmentally friendly refrigerant compared to HFCs (Hydrofluorocarbons) due to its lower Global Warming Potential (GWP) and its ability to break down more quickly in the atmosphere. While HFCs have been widely used because of their effectiveness, they carry significant environmental concerns, particularly regarding their long-term impact on global warming.

HFOs are designed to combine low GWP and energy efficiency, making them a sustainable alternative in HVAC applications. They are not ozone-depleting and have a much smaller impact on climate change when released into the atmosphere. This combination of properties aligns with global efforts to reduce greenhouse gas emissions and ensure a healthier planet.

In contrast, other refrigerants listed, such as HCFCs (Hydrochlorofluorocarbons), R-22, and R-134A, are either being phased out or have higher GWP values, contributing to environmental deterioration. The emphasis on transitioning to HFOs represents a significant step forward in environmentally responsible refrigerant technology and regulatory compliance in the HVAC industry.