Willis Carrier invented air conditioning in 1902. Over 100 years later, we're proud to say Carrier systems are trusted in more homes than any other brand.Loaded with Carrier technologies ¿ from a two-speed compressor as the heart of the air conditioner, electronic circuit boards for precise control over low- and high-speed operation, to our exclusive Silencer System for quiet running products ¿ ensure that our air conditioner products perform at optimal efficiency for years to come.