If the product meets the strict guidelines set forth by the US Environmental Protection Agency and the Department of Energy, this product can earn the Energy Star label.  Energy Star Dehumidifier have more efficient compressors, refrigeration coils, and fans. So comaring with conventional dehumidifier models, it use less energy. However, the functions are the same. They can remove the same ammount of moisture from air if the size is similar. However, it can use 10-20 percent less energy. If you are thinking buying  a dehumidifier, you should definitely consider energy star qualified dehumidifiers. It’s a good deal to get it.