What is the process called that involves cooling air below the dew point to remove moisture?

The correct answer, condensation, refers to the process where air is cooled below its dew point, causing moisture in the air to transition from a gaseous state (water vapor) to a liquid state (water). This is a key concept in drying and moisture management, as it allows for the effective removal of excess humidity from air spaces, surfaces, or materials.

When the air is cooled below the dew point, the ability of air to hold moisture decreases, leading to the formation of water droplets. This process is commonly utilized in various industrial applications and is fundamental in controlled drying environments, ensuring materials are dried effectively without damage.

In contrast, desiccation refers to the process of drying out completely by removing moisture and is typically achieved through the use of desiccants rather than cooling air. Pressurization involves increasing the pressure of a space and does not directly relate to moisture removal by cooling. Evaporation is the opposite of condensation, where liquid changes to vapor, and is not applicable in the context of cooling air to remove moisture. Understanding these distinctions reinforces the importance of condensation in moisture control strategies within commercial drying operations.