Carrier's commitment to your comfort extends beyond the needs of today with innovative products designed to meet future environmental guidelines. According to the Clean Air Act of 1990, Freon®-22* and other refrigerants will be phased out of use in the near future. As a result, homeowners will soon have to turn to Puron® refrigerant to maintain their indoor comfort. That's why Carrier has been designing and testing heating and cooling equipment that uses Puron, a refrigerant approved by the EPA to replace Freon-22. In fact, Carrier has been offering Puron-based systems in homes like yours since 1996, developing a complete line of products using the world's first, long-term solution to ozone depletion. The Carrier WeatherMaker® Two-Speed with Puron refrigerant combines the benefits of our environmentally sound and extremely reliable Puron refrigerant products with the superior comfort of two-speed technology. For every $100 spent to cool your home... each point in SEER increase lowers your monthly electric bill. Puron® does not damage the ozone like Freon®* Does. * Freon is a registered trademark of E. I. Dupont de Nemours & Co.