| 摘要 |
A dust collector for a vacuum cleaner having a blower has an outer wall with an air-impermeable main portion bounding an inner chamber and a limited air-permeable portion, a filter accommodated in the chamber and connectable with the blower, and an additional filtering member associated with the air-permeable portion of the outer wall. The additional filtering member may be composed of an electrostatically chargeable filtering material and may be formed as a separate member or as a part of the wall of the dust collector.
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