| 摘要 |
PROBLEM TO BE SOLVED: To realize an inexpensive, small and compact smoke separating equipment covering wide smoking area, having excellent smoke separating performance. SOLUTION: Air curtain flow is stabilized by forming air curtain flow blown out covering smoking area into spiral form whirling flow, thereby forming the inside intake air flow into the whirling air flow of rising tornado. The sealed smoking area is expanded effectively by the stabilized air curtain flow enabling to comply with the use of many smokers.
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