Common applications. Although the principles of psychrometry apply to any physical system consisting of gas-vapor mixtures, the most common system of interest is the mixture of water vapor and air, because of its application in heating, ventilating, and air-conditioning and meteorology.
Arctic Air CLAIMS. Easy to use Arctic Air alleges to be easy to use and set up. Simply pour water in the tank, plug it in and this evaporative air cooler asserts that you can create your own personal climate by adjusting the digital temperature display to the temperature that suits you.