A refrigerative dehumidifier is a device that removes excess moisture from the air by cooling it. The air is drawn into the dehumidifier where it passes over a set of coils that contain a refrigerant. As the air passes over the coils, the moisture condenses onto the cold surface of the coils and drips into a collection tray, while the drier air is then expelled back into the room.
A dryer, on the other hand, is a machine that is used to remove moisture from clothing, towels, and other fabrics. There are several types of dryers, including gas dryers, electric dryers, and heat pump dryers. All types work by using hot air to evaporate the moisture in the clothes, which is then vented out of the dryer.
While both a refrigerative dehumidifier and a dryer are used to remove moisture, they are designed for different purposes. A dehumidifier is used to reduce the humidity levels in a room, which can help prevent mold and mildew growth, and make the air more comfortable to breathe. A dryer is used to remove moisture from clothes and other fabrics, so they can be worn or used again.