The software includes a humidity chart and a unit converter, as well as different unit systems and numeric formats. The humidity chart utility can be used to visualize either the state of a drying gas or an isenthalpic drying process. The unit converter utility covers all chemical engineering units. The intensive calculations required when modeling a drying process such as the states of moist gas for convective dryers (which constitute over 90% of all industrial dryers) or special state variables (wet-bulb temperature, absolute and relative humidity) are now much easier to perform. It's time to throw away the ruler and the paper charts!