| 摘要 |
A rotating magnetic disk is enclosed in a housing having at least one pair of ports. An external conduit having a filter therein interconnects the ports. The rotation of the disk imparts a velocity to the air adjacent to the disk faces and the interior of the housing provides an airflow guide which causes air from both sides of the disk to flow into a scoop disposed in one port and coupled to the conduit. Thus a high rate of air circulation through the conduit is achieved and the air is rapidly filtered.
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