| 摘要 |
A muffler unit (4) for fume extractor hood is disclosed, which comprises an active noise suppression system, comprising at least one loudspeaker (6), and at least two microphones (M1, M2) connected to a control unit (7), and a passive noise suppression system comprising sound-absorbent material (8) disposed between said microphones (M1, M2). The muffler module (4) comprises a conduit (40) with upper fixing means (41) and lower fixing means (42) designed to be removably fixed respectively to a motor unit (2) and to a conveyor plate (3) of a hood (1). |
