| 摘要 |
<p>A ventilation device for doors or windows, comprising an outer casing (12) and an air conveyor (14) mounted within said casing (12) and equipped with seats (50, 54) shaped to receive a filter (16) and a fan assembly (18), said air conveyor (14) having access openings (46, 48) facing at least one window (34, 36) of said outer casing (20) so that said filter (16) and said fan assembly (18) are mountable in said air conveyor (14) through said at least one window (34, 36) of the outer casing (12).</p> |
