What does the term "dehumidification" refer to in HVAC?

The term "dehumidification" specifically refers to the process of removing moisture from the air. This is an important function in HVAC systems, particularly in humid climates or during certain times of the year when indoor humidity levels can become uncomfortable or lead to problems such as mold growth and dust mites. Effective dehumidification improves indoor air quality and enhances comfort by maintaining optimal humidity levels, typically around 30-50%.

By controlling humidity through dehumidification, HVAC systems help mitigate the negative effects of excess moisture, ensuring that the environment remains healthy and comfortable for occupants. This contrasts with other processes, such as adding moisture to the air (which is the opposite of dehumidification) or heating air to increase comfort, which focuses on temperature rather than humidity levels. Additionally, filtering air pollutants does not directly address humidity, making dehumidification a distinct and critical function in HVAC systems.