Abstract: Mini, split-system dehumidifier that provides three modes of operation: heating and dehumidification, cooling and dehumidification, and dehumidification only. The dehumidifier maintains a set temperature of the supply air by controlling the amount of heat of rejection at the primary condenser that is cycled back into the supply air.

Abstract: A method and apparatus for removing contaminates from an air stream in which an adsorbent activated carbon cloth is positioned in said air stream. The method and apparatus provide for impressing an electric current through the cloth adsorbent to desorb any contaminates adsorbed thereon.

Abstract: A system and method for removing volatile organic compounds (VOC's) from a circulating airstream utilizes first and second adsorption beds and first and second adsorption paths alternately coupling the circulating airstream to the respective first and second adsorption beds for removing VOC's during adsorption cycles. First and second desorption loops alternately couple a desorption inert gas through the respective first and second adsorption beds for desorption and regeneration and for recovering VOC's in a VOC condenser. System parameter sensors are distributed in the first and second adsorption paths and first and second desorption loops for sensing system parameters. A programmable controller is coupled to the system parameter sensors, to flow control valves, and to the inert gas heater for controlling the system in response to sensed system parameters. The system parameter sensors include a variety of temperature, O.sub.2, VOC, pressure, and differential pressure sensors.