| 摘要 |
The present invention discloses the ventilating device with simplified structure and even distribution of flow speed of the air flowing in the suction surface of the heat exchanger, thus, the heat exchanging efficiency can be improved. The ventilating device includes: heat exchanger for performing heat exchange for the air flowing into or out of the chamber; filter positioned on the suction surface of the heat exchanger. Wherein, the filter makes different air flowing resistance according to different suction position for evening the flowing speed of the air flowing into said heat exchanger. |
