| 摘要 |
<p>According to an aspect of the present invention, a passive nozzle (1) for a vacuum cleaner is provided. The passive nozzle comprises a top part (2), a bottom part (3), and an airtight chamber (7) having a suction inlet (11) for the purpose of taking in dust from a surface to be cleaned and an outlet for connection to a fan unit of the vacuum cleaner. The top part comprises at least one air intake aperture (14) and the bottom part comprises an air outlet aperture (16). Further, the at least one air intake aperture of the top part is in fluid connection with the air outlet aperture of the bottom part. The present invention is advantageous in that the noise level is reduced.</p> |
