Your system naturally removes moisture from the air in your home during the cooling season. However, it doesn’t run very often in the spring and fall. That’s when moisture presents the biggest indoor air quality and health problems. Depending on where you live, the construction materials used in your home, and the tightness of the construction, you may need more dehumidification year round to ensure a healthy home. Whole house dehumidification also protects your possessions from excess moisture. Some dehumidification products also introduce needed fresh air and filtration.