When released into the atmosphere, the refrigerant Freon damages the Earth' s ozone layer  A new kind of refrigerant does not have this effect
The manufacturer claims that replacing Freon with the new refrigerant in both new and existing refrigerators will prevent any further Freon damage to the ozone layer apart from that being done by the Freon already in the atmosphere
The new refrigerant can counteract the damaging effects of Freon on the Earth's atmosphere.