What is the primary function of a dehumidifier in HVAC systems?

A dehumidifier's primary function in HVAC systems is to reduce humidity levels and prevent mold growth. High humidity can create an uncomfortable living environment and can lead to various issues, including the growth of mold and mildew, which thrive in damp conditions. By extracting moisture from the air, a dehumidifier helps maintain ideal humidity levels, typically between 30% and 50%, promoting a healthier indoor atmosphere.

Additionally, lowering humidity can enhance overall comfort by reducing the perceived temperature, especially in warm weather. Managing humidity not only preserves the structural integrity of buildings and furnishings but also minimizes health risks associated with mold and dust mites. Therefore, option B aptly captures the essential role of a dehumidifier in an HVAC system.