专利名称：Demand ventilation system发明人：Gray Robertson申请号：US08/546338申请日：19951020公开号：US05791983A公开日：19980811
摘要：A pair of variable air volume fans and a set of primary and exhaust air diffusersare in atmospheric communication between a supply of ventilation air that employs theprinciples of thermal displacement ventilation for purging a designated smoking area ofsmoke pollutants and the outside atmosphere for receiving the purged polluted air. Thevolume of ventilation air supplied to the designated area and the volume of air exhaustedfrom the designated area is based upon air quality demand requirements and is
determined by a microprocessor coupled to a gas sensor disposed within the designatedsmoking area.
申请人：HEALTHY BUILDINGS INTERNATIONAL
代理机构：Higgs, Fletcher & Mack
代理人：Bernard L. Kleinke
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