Aprilaire's E130 Whole House Dehumidifier is a powerful and efficient unit that is easy to install and works as expected. It is capable of removing up to 59% of indoor humidity and is able to maintain it for up to 10 years. However, it is important to note that the internal humidity sensor is not the best indicator of the humidity in the living space. Additionally, the air handler is not designed to handle the additional moisture load.