| 摘要 |
An exhausting apparatus includes a duct defining an exhaust channel having an inlet and an outlet, a first fan mounted in the duct, and a first backpressure-inhibiting device mounted in the duct and located in front of the first fan. The first backpressure-inhibiting device includes a partitioning plate having a plurality of through-holes. A negative pressure area is created between the first backpressure-inhibiting device and the first fan when the first fan is driven. Waste gas exhausting efficiency of the exhausting apparatus is enhanced.
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