| 摘要 |
<p>A surface treating appliance includes first, second and third cyclonic separating units. The first cyclonic separating unit includes a perforated shroud having a lower wall and a side wall comprising an array of apertures providing a fluid outlet from the first cyclonic separating unit,and a first dust collector extending beneath the lower wall of the shroud. The second cyclonic separating unit includes a plurality of second cyclones arranged in parallel, and a second dust collector located beneath the dust outlets of the second cyclones and having an upper extremity lying 10mm beneath the lowest of the dust outlets. The third cyclonic separating unit includes a plurality of third cyclones arranged in parallel, and a third dust collector located beneath the dust outlets of the third cyclones and having an upper extremity lying 10mm beneath the lowest of the dust outlets. The volume of the second dust collector is greater than the volume of each of the first and third dust collectors.</p> |
