Winter usually brings very low humidity to out homes and the dryness can cause health and other concerns. The humidity level should be between 35-50%. Keeping your home at proper setting will help save energy as well as reduce maintenance. To low can cause health issues such as scratchy throats and even problems with electronics. When it is too high you may have stains, mold or allergies. More stores have hygrometers to test this. To control the humidity you can have a show house humidifiers or dehumidifier installed or purchase on for individual rooms.