GeneralAire® Whole House Humidifiers can Improve comfort indoors and maintain a healthy environment. Research has shown that 40% to 60% relative humidity is ideal for today`s homes. Humidity can save money too. For example, 68 F at 40% relative humidity feels just as warm as 74 F at 20% relative humidity. Setting your thermostat back by as little as three degrees can reduce annual heating bills by as much as 5%. Quality, Style, and Commitment goes into every box so you can relax. Browse our selection of humidifiers to find one to meet your needs.