The word Freon refers to a wide range of chemical refrigerants used in air conditioners (as well as other refrigeration equipment) to transfer heat. Freon is actually a trademarked name of DuPont, but it has come to stand for all different refrigerant blends in use today.
The Freon in your air conditioning system is vital for it to work: as it evaporates and condenses, switching between liquid and gaseous states, it absorbs heat from the inside of your house and the exhausts it to the outside. You AC doesn’t use up Freon as it runs; the level of Freon, which is known as the air conditioner’s charge, will remain the same through the life of the system…
