This product is a dehumidifier. It controls relative humidity by passing the air through the unit, forcing the excess moisture to condensate over the cooling elements. Contact with this cold surface causes the moisture in the air to condense. This condensed water then drains safely into the water tank. The dried air then passes through the condenser where it is slightly warmed and re-enters the room at a slightly elevated temperature. Humidistat manual control on/off switch Removale washable filter Water full indicator light 2 year warranty 10L per day moisture removal 3.6L water tank 342 x 245 x 492 (wxdxh mm)