Our Sani-Dry Sedona dehumidifier is perfect for crawl spaces naturally prone to excessive humidity. The Sedona keeps the relative humidity below 55% so that mould will not stand a chance. As a high-efficiency ENERGY STAR® certified dehumidifier, the Sedona removes more moisture (100 pints per day) for less electricity cost than conventional models. The Sedona drains automatically and has a humidity sensor that monitors the air, so once it is installed, there's nothing else to do aside from yearly maintenance.