Psychrometry is the study of the properties of air and water vapor mixtures. It focuses on understanding how temperature, humidity, and pressure interact, which is essential for various applications in fields like meteorology, HVAC (heating, ventilation, and air conditioning), and agriculture. By measuring parameters such as dry bulb temperature, wet bulb temperature, and relative humidity, psychrometry helps determine the moisture content in the air. This information is crucial for designing efficient climate control systems and predicting weather patterns, ultimately impacting comfort and energy consumption in buildings and outdoor environments.