What is the importance of humidity in HVAC calculations?

Humidity plays a critical role in HVAC calculations, as it affects the comfort, health, and safety of building occupants. The equation for relative humidity (RH) is RH = (Pv / Ps) \* 100, where Pv is the vapor pressure and Ps is the saturation pressure. Accurate calculations of humidity are essential for designing and operating HVAC systems, particularly in applications such as hospitals, laboratories, and data centers, where precise control of humidity is crucial.