Dehumidifiers are a common household appliance that helps to remove excess moisture from the air. There are several synonyms that can be used for the word "dehumidifier". A few of the most commonly used ones include moisture absorber, humidity controller, air dryer, and air purifier. These synonyms all describe appliances or devices that are designed to reduce the level of moisture or humidity in the air, which can help to prevent mold, mildew, and other issues associated with dampness. Whether you are looking to purchase a dehumidifier or simply want to expand your vocabulary, these synonyms can be helpful to know.