Psyc-It is a robust tool that allows the user to study the properties of air and water vapor mixtures; temperature, relative humidity and dew point are some of the common psychrometric properties. Psyc-It allows the user to determine common properties of the air and water vapor mixture knowing any two properties. A key feature of Psy-it is the ability to blend air streams, finding mixed conditions. Cooling, heating and other energy changing activities can also be calculated.