CYTSoft Psychrometric Chart 2.2 is an interactive and intelligent psychrometric chart program designed for thermodynamics-related industries, especially HVAC and refrigerating. It helps engineers calculate, analyze, draw, edit, print, and export conditions and processes of moist air quickly and accurately. Traditionally, moist air is modeled as a mixture of two ideal gases by most psychrometric charts and calculators. By contrast, CYTSoft Psychrometric Chart treats dry air, water vapor and moist air as REAL GASES to get much higher accuracy and larger extents. Thus, this product is especially useful where high precision is required.