Refrigerant Terminology
Please use the correct name or names when specifying refrigerants. The guidelines are listed below:^ Freon(R) is a registered trademark of DuPont, and should only be used if referring to DuPont R-12.
^ DuPont's trade name for R-134a (automotive use) is Suva(R) Trans A/C.
^ When referring to refrigerants, the terms Freon(R) and Suva(R) should not be used as a general reference. The proper terms are R-12 and R-134a.