Refrigerant or Freon Color and Odor


  • Is Freon or refrigerant green, red, or blue?
  • Does Freon or refrigerant have an odor?
  • Is a sealed system leak harmful?
  • Are there any health risks associated with Sub-Zero refrigerant?
  • Refrigerant odor in a Sub-Zero


Refrigerant and Freon are gases that are both colorless and odorless.

  • Refrigerant leaks cause damage to the ozone layer. Correct temperature issues at the first signs of a problem.
  • Leaking refrigerant is not harmful to humans.
  • If a color is present, it is from dye put into the system to detect leaks.
  • Sub-Zero does not recommend using dye in any refrigeration, freezer, or wine storage unit to detect a sealed system leak.

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