The Best Dehumidifiers for Basements, Crawl Spaces, and Other Damp Areas The Best Dehumidifiers for Basements, Crawl Spaces, and Other Damp Areas The Keystone KSTAD70B 70 Pints Dehumidifier is a great option if you're looking for a large-area dehumidifier at a lower price. This unit can dehumidify rooms upto 4500 square feet. It also comes with a lot of useful settings and features that make it easy to use. The electronic LED-display allows you to control the fan speed, timer, humidity, and can be alerted when your water bucket is full. It also has a transparent indicator that will allow you to see the water level. The unit comes with several automatic functions, such as an auto-restart and auto shut-off. This model, which weighs in at 30 pints, is designed to fit into a space less than 1,000 square feet. Displays also display alerts and indicators such as when it is time for cleaning the filter or to empty the collection tank. A digital display allows you to adjust the humidity ...