Since you're in the desert, you definitely need moisture added to your environment. A humidifier will help, and the quick, simple, quiet, inexpensive version is a spray bottle of water. (I use distilled or filtered water to avoid leaving mineral deposits.) Just spritz it in the air all around the room, and you'll feel the difference immediately. Repeat often. If you have the room for a small fountain you could have the soothing sound as well as added humidity; again, using distilled or filtered water cuts down on mineral deposits, extending the useful life of the fountain.