These are water condensing type, based on “Refrigeration Cycle” to avoid use of expensive chemicals required for desiccant type models. Body made of MS sheet duly epoxy powder coated. It removes excess moisture from the atmosphere and is fitted with hermetically sealed compressor. Heat exchanger and Water Condensing coils are made of copper. Water collection tank is provided below the unit to collect condensate water. Humidity is controlled by HUMIDISTAT or Digital Humidity Indicator-cum-Controller incorporated in the unit, upto 30% ± 3% RH, depending upon the ambient and room conditions and size. To achieve very low humidity, the room should have a independent window type air conditioner to match with the De-Humidifier heat load in the room. Suitable to work on 220/230 volts AC supply.