What is the typical operating range for indoor humidity in a residential HVAC system?

The typical operating range for indoor humidity in a residential HVAC system is 30% to 50%. Maintaining indoor humidity within this range is crucial for several reasons. First, it enhances comfort; too low humidity can lead to dry skin and respiratory discomfort, while too high humidity can cause a feeling of stickiness and discomfort.

Additionally, this range helps to prevent potential problems related to condensation and mold growth. High humidity levels can create an environment conducive to mold and mildew development, which can harm both the structure of the home and the health of its occupants. Conversely, extremely low humidity can lead to static electricity issues and can also damage wooden furniture and flooring.

Overall, the range of 30% to 50% strikes a balance that supports comfort, health, and preservation of the home, making it the ideal operating humidity level for residential HVAC systems.