What Is a Bypass Humidifier? How Whole-House Humidifiers Work

A bypass humidifier is a whole-house humidifier that works with your existing HVAC system to add moisture to dry indoor air. During winter, heated air becomes very dry, which can lead to irritated sinuses, dry skin, static electricity, and general discomfort. In this video, we explain how bypass humidifiers work, why they’re commonly used in cold and dry climates, and how they compare to other whole-house humidification options. This short explainer is designed to help homeowners understand whether a bypass humidifier is a good fit for their home.