Nate Core Practice Test 2025 – Comprehensive Exam Prep

Dehumidification in HVAC systems refers to the process of removing moisture from the air to lower humidity levels, which directly impacts indoor air quality and comfort. High humidity can lead to discomfort, mold growth, and various health issues, so controlling moisture levels is crucial.

This process is typically achieved through the cooling of air, which causes moisture to condense and be removed from the indoor environment. By lowering the humidity, dehumidification helps maintain an optimal indoor climate, enhancing the efficiency of heating and cooling systems while promoting occupant comfort.

Other options relate to different aspects of HVAC operations: regulating temperature based on occupancy focuses on energy efficiency, while air replacement deals with airflow quality, and controlling energy use pertains to managing consumption and efficiency of HVAC units. However, they do not specifically address the removal of moisture, which is the core function of dehumidification.