专利名称：Device and method for ventilation发明人：Erkki Aalto,Teuvo Pellinen,Pekka Kyllonen申请号：US07/768858申请日：19910925公开号：US05220910A公开日：19930622
摘要：The invention concerns a ventilation device, through which impure air is removedout of a room, in particular out of the proximity of a source of impurities at a workingpoint in the room space. According to the invention, through the device, besides theremoval of impure air and/or excess heat from the source of impurities as a limited-arearemoval, air of general removal is also removed through the device, the suction openingfor general removal being preferably opened into the same exhaust chamber into whichthe suction opening for the space for collecting of impurities in the interior of, forexample, a kitchen hood is opened. The device may also include a flow opening for thegeneral intake. Thus, the device can operate as a device for limited-area ventilation andfor general ventilation serving for the whole room.
申请人：HALTON OY
代理机构：Steinberg & Raskin
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