The Sentinel HS35 is a dehumidifier that focuses on simplicity and has a control panel with a rotary knob design that makes it easier and more intuitive to use. The HS35 is Energy Star and ETL certified. It has a convenient and quick rotary knob design to adjust the humidity level according to the absolute humidity of the environment to achieve precise humidity adjustment in residential and commercial spaces and save energy and energy costs. When saturated, it effectively removes up to 70 ppd of water per day, providing a dry, comfortable, and healthy environment. The Sentinel HS35 dehumidifier can protect the environment by reducing greenhouse gas emissions. Gravity drainage ensures the fluidity of water, strengthening the work efficiency of the dehumidifier. The AlorAir Sentinel HS35 has an adjustable humidity range of 30%-70% that you can control with the knob. The unit automatically shuts off when the humidity reaches the set level. You can safely use the unit while away from home or in an unoccupied basement. Color: Gray.