With the increase in global greenhouse gas emissions, the development of fourth-generation HFO refrigerants has attracted more attention around the world. 

Many countries are seeking more environmentally friendly refrigerants. HFO refrigerants are becoming an alternative to HCFC and HFC refrigerants. Ideal for 

refrigerants.

Models included in HFO refrigerants: R1234yf R1233zd R1234ze R448a R449a R515b

The advantages of HFO refrigerants are mainly reflected in the following aspects:

1. High efficiency and energy saving: HFO refrigerants have a higher energy efficiency ratio (COP). Compared with traditional refrigerants, HFO refrigerants can 

achieve better energy saving when using the same cooling capacity.

2. Environmentally friendly: HFO refrigerants are gases at room temperature and do not contain ingredients that damage the ozone layer, making them more 

environmentally friendly.

3. High reliability: HFO refrigerant has high stability and can provide longer service life and longer trouble-free operation time.

4. Strong adaptability: HFO refrigerants have strong adaptability to temperature and humidity, and can be applied to a variety of environments and working 

conditions.

5. Low noise: HFO refrigerant flows evenly in the refrigeration system, the fluid resistance is small, and the cooperation between the compressor and the pipeline 

is smoother, which can reduce noise pollution.

In general, HFO refrigerants have significant advantages in environmental protection, energy saving, reliability, etc., and are one of the main directions for future 

refrigerant development. In the future, as countries around the world reduce the use of third-generation refrigerants, there will be greater demand for 

fourth-generation refrigerants.