HFO, or hydrofluoroolefin, is a type of chemical compound used primarily as a refrigerant. It is known for having a lower global warming potential compared to traditional refrigerants like HFCs (hydrofluorocarbons). HFOs are increasingly being adopted in various applications, including air conditioning and refrigeration systems, due to their environmental benefits. These compounds are designed to break down more quickly in the atmosphere, reducing their long-term impact on climate change. As countries implement stricter regulations on greenhouse gas emissions, HFOs are becoming a popular alternative for industries looking to comply with environmental standards while maintaining efficiency.