R32 Refrigerant Gas � Maxron R32 refrigerant is also known as difluoromethane and belongs to the HFC family of refrigerant. This gas is poised to replace the other gaseous such as R-410A and R-407C as the preferred gas due to its lower Global Warming Potential. Its chemical formula is CH2F2. R32 is a low GWP refrigerant of 675. It is 17% of the GWP of R404A which is common in refrigeration. It is 32% of the GWP of R410A which is common in air conditioning. Moving to R32 is good for the environment, it minimizes the effect on climate change.