The Whynter Force Star© RPD-321EW portable dehumidifier is compact unit with an outstanding capability of removing up to 30 pints of moisture from the air per day. This piece creates a very efficient and space-friendly drying solution to any home or workplace dealing with high levels of humidity. Drainage options This handy dehumidifier can be continuously operated with 2 drainage options; manual drain and gravity drain. The Whynter Energy Star&replication; RPD-321EW portable dehumidifier includes a 7-pint bucket that can be removed and emptied. A bonus drain hose attachment is included with the section for your immediate convenience. Low temperature operation For low-temperature area usage, this portable dehumidifier has an auto defrost function to insure moisture does not freeze and prevent further moisture extraction. Comfort mode Using this convenient feature, the RPD-321EW can automatically command the room humidity within an optimal comfort range of between 45%~55% based on the current room temperature. Auto Restart and Auto Shutoff The RPD-321EW can automatically spell off when set humidity levels have been met or when the water reservoir is full. The unit is also designed to restart in the event of a power interruption. Animation Star© rated This unit is Energy Star© rated, demonstrating specifications for lower drive consumption during use. This is especially important if you plan on operating the unit on a frequent basis. The Whynter RPD-321EW provides cost-capable and energy-efficient operation, without sacrificing design and performance. Designed for space constrained usage, this unit is suited for enclosed areas up to 2500 sq. ft.