| 摘要 |
A filter assembly for a vacuum cleaner according to the present invention comprises a primary filter for filtering out fine dust contained in air from which relatively large dust has been separated in a cyclonic manner, a filter case with the primary filter attached to an outer periphery thereof and a plurality of air vent holes formed on the outer periphery thereof, and a secondary filter mounted into the filter case for filtering out again fine dust contained in the air which has passed through the primary filter. According to the present invention, it is possible to easily remove the dust and dirt accumulated in the filter assembly during the process of filtering the fine dust contained in the air, and the filter can be used semi-permanently.
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