National Refrigerants, Limited (NRL) is an independent worldwide distributor
of refrigerants and all associated refrigerant management services.

ABOUT HFCs

HFC refers to the chemical composition of the refrigerant. HydroFluoroCarbon indicates that the refrigerant is comprised of Hydrogen, Fluorine, and Carbon. A blend that contains different HFCs is considered an HFC refrigerant.

ABOUT HFOs

HFO refers to the chemical composition of the refrigerant. Hydrofluoroolefin indicates that the refrigerant is comprised of Hydrogen, Fluorine, and an Olefin group of carbon atoms. This means that one or more of the bonds holding the carbon chain together is a double bond, or “unsaturated” bond. The presence of the double bond allows the molecule to break down easier in the atmosphere, significantly reducing its atmospheric lifetime and associated GWP value.

HFCs
 
 
HFOs