Why does the dehumidifier blow out hot air?

A dehumidifier blows out hot air because it removes moisture from the air through a refrigeration cycle. As warm, humid air is drawn in, it passes over cold coils, causing the moisture to condense and collect in a reservoir. The cooled air is then reheated by the compressor and released back into the room, resulting in warm air being expelled. This process effectively reduces humidity while increasing the temperature of the surrounding air.