| 摘要 |
A vacuum cleaner comprises a case(1) having an air outlet(15), a motor fan(10), a dust case(2) having an air inlet(13), the first dust filter(91) which is disposable and made of material like paper bag having good flexibility and permeability, a filter support and the second dust filter(107) which is placed on downstream of the first dust filter and corrects micro-dust passing through the first filter. The second dust filter is used over again regardless of change of the first dust filter.
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