| 2. Refrigerant Freon®–22 Refrigerant
Since its debut in 1930, Freon refrigerant has been used in cooling systems. And while it’s still available, the Clean Air Act of 1990 prohibits the production of Freon–22-based air conditioners and heat pumps by 2010, and Freon–22 production by 2020. As Freon–22 production declines, its cost is predicted to rise. (Freon is a registered trademark of E.I. duPont de Nemours & Company.) Puron® Refrigerant 
Carrier was the first to introduce a new, non-ozone-depleting refrigerant called Puron – a full six years ahead of the competition — paving the way for the future. Puron refrigerant is chlorine-free, so it doesn’t damage the Earth’s ozone layer. And, as other refrigerants become less available, Puron refrigerant will be the refrigerant of choice for years to come. 3. Comfort Carrier specializes in creating a customized home comfort system with our broad selection of heating and cooling products. Your Carrier dealer can help you choose the best system for your home including Carrier-exclusive features that further enhance your indoor environment ComfortHeat™ Technology 
ComfortHeat™ Technology accurately predicts the need for heating while cutting temperature swings in half, and provides a nearly continuous flow of warmth in low-capacity operation for a steadier, more consistent indoor temperature. 
IInfinity™ System
When a heat pump or air conditioner is combined with a variable-speed furnace or fan coil, the revolutionary Infinity System is the only system in the industry that allows you to control temperature, humidity, air quality, fan speed and ventilation; and even detects when your air filter needs replacing. It’s so advanced it automatically adjusts to your systems’ needs for peak efficiency and performance. It’s the ultimate control center for all of your home system components. IdealHumidity™ Systems
IdealHumidity Systems automatically add or remove just the right amount of moisture to keep your home comfortable. IdealHumidity Systems can help you save on energy costs, too. When the humidity is right, you can feel comfortable at higher temperatures in the summer, and lower temperatures in the winter. 4. Sound Home comfort shouldn’t come at your ears’ expense. That’s why quiet is built right into every system. Carrier furnaces feature the QuieTech™ noise reduction system that provides comfortable heat while generating very little noise in the process. 
Carrier air conditioners are also quiet, thanks to the exclusive Silencer System™ that ensures extra-quiet performance by maximizing airflow while minimizing vibration. With sound ratings as low as 69 decibels (dB), Carrier’s Infinity™ Series air conditioners make less noise than a refrigerator. 
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