| 摘要 |
An air cleaner, which includes a casing having an enclosed air passage with a ventilation pipe for guiding in outdoor air, a windpipe affixed to one side of the casing for circulation of indoor air, a damper pivotally mounted in between the casing and the windpipe for controlling the passage the casing and the windpipe and flowing direction of air between the casing and the windpipe, and an air filter and a negative ion generator mounted in the windpipe for cleaning air passing through the windpipe.
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