Which equipment draws moist air from a room over a refrigerated coil?

The equipment that draws moist air from a room over a refrigerated coil is an air conditioner. Air conditioners are designed to not only cool the air but also to remove humidity from it. When air is drawn into the air conditioning unit, it passes over a refrigerated coil where the temperature is significantly lowered. As the warm, moist air contacts the cold surfaces of the coil, moisture condenses and is removed from the air, effectively dehumidifying it. This process is an integral part of how an air conditioner functions — it cools the air while also regulating humidity levels, creating a more comfortable indoor environment.

In contrast, a humidifier adds moisture to the air and is used when the air is too dry, making it the opposite of what the question is asking. A dehumidifier specifically removes moisture from the air but does so without refrigeration processes similar to those in air conditioning. An evaporative cooler works by adding moisture back into the air, cooling it in the process, but it does not involve drawing air over a refrigerated coil. Therefore, the concept of cooling and dehumidifying air as part of a single process firmly pinpoints air conditioning as the correct answer.