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  Occupancy based ventilation systemUSPTO Application #: 20070149109Title: Occupancy based ventilation system Abstract: An occupancy based ventilation system for indoor air quality that uses a counter to count the number of persons in a specific indoor room or other area, wherein the number of persons determines the degree of ventilation from the room's ventilation system. The counter would keep track of both the number of persons and the length of time each is present in the room. A feedback control algorithm between the counting device and the ventilation management controls provides for automatic control of the amount of ventilation needed to insure a comfortable and efficient environment. (end of abstract)
USPTO Applicaton #: 20070149109 - Class: 454256000 (USPTO) Related Patent Categories: Ventilation, Having Inlet Airway, Including Automatic Control Means
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