The app will calculate the state of a mixture of air (moist air) based on its chemical composition. The state of the mixture is described by the pressure, dry-bulb temperature, relative humidity, specific enthalpy, and specific volume. The values of these parameters can be calculated from each other.

The app will calculate the values of these parameters by using a number of different expressions. Each of these expressions contains three values, and the app can use them to calculate the desired value.

The app has an extensive database with a number of parameters. It can calculate each of these parameters for a mixture of air with a certain percentage of water. The percentage of water in the mixture is usually between 0% and 100%.