| 摘要 |
A vacuum cleaner having a reduced velocity chamber with a high velocity air inlet, an electric motor, a rotary blade driven by the motor to create a vacuum in the chamber, an outlet for exhausting air from the chamber, which air flows in a selected path from the air inlet, through the chamber and out the air exhaust outlet, a disposable porous sheet filter layer in the chamber for removing large solid particles from the air, and a disposable noncollapsible filter liner in the chamber and connected to the filter.
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