The cooling process works through evaporative cooling. Evaporative cooling is possible in dry climates. Evaporative cooling is commonly used in cryogenic applications. The effectiveness of evaporative cooling depends upon humidity. Evaporative cooling is restricted by atmospheric conditions. The human body requires evaporative cooling to prevent overheating. Portable air conditioners are either evaporative or refrigerative. As it travels poleward, warm water transported by strong warm water current undergoes evaporative cooling. Condensers can be air-cooled, water-cooled, or evaporative. Amphibians and reptiles cope with heat loss by evaporative cooling and behavioral adaptations. Understanding evaporative cooling performance requires an understanding of psychrometrics. Incorporating direct fuel injection, evaporative water cooling and other advanced features, it generated around . Microburst soundings show the presence of mid-level dry air, which enhances evaporative cooling. The least severe of these is the freezing of bodily secretions due to evaporative cooling. This phenomenon is also called evaporative cooling.