| 摘要 |
<p>A suction or vacuum cleaner with a ribbed filter bag chamber or compartment is described. The ribs (62) keep the walls of a filter bag (65) from touching the sides of the filter chamber (65), thus increasing the efficiency, measured in accordance with EN 60312 quality factor parameters. The bag or pouch may also include surface pleats, which also increase efficiency or effectiveness of the bag.</p> |
