| 摘要 |
A portable vacuum cleaner has a fan 107 which draws air inwards through inlet duct 111 and inlet 112 to coarse filter element 113. Larger dirt particles are trapped within coarse filter element 113, and the filtered air passes through fine filter element 115 and into fan 107, where it is expelled through outlet duct 117 and outlet aperture (Figure 4) P-AU-HW1039 co )-J -C%_ -C-D (u. |
