| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a dust collector which comprises a coarse dust filter and a fine dust filter and ensures air permeability of the fine dust filter even when the coarse dust filter is clogged, thereby suppressing increase in pressure loss.SOLUTION: A dust collector 1 comprises a coarse dust filter 5 and a fine dust filter 6, with the coarse dust filter 5 having a pleats-like folded shape, providing air gaps in a stripe pattern between the coarse dust filter 5 and the fine dust filter 6. Thereby, the dust collector 1 can ensure air permeability of the fine dust filter 6 and can suppress increase in pressure loss.</p> |
