| 摘要 |
A central vacuum cleaner including a central unit provided with a suction joint and an exhaust joint as well as a suction hose. According to the invention, the central vacuum cleaner includes an operating unit (1) having adaptors for attaching the central unit (2) to the operating unit, an exhaust junction (3) for connecting the exhaust joint of the central unit to the operating unit, a filter (4) for filtering the air flow from the exhaust joint and exhaust junction, as well as an outlet port (5) for directing the air flow that travelled through the filter into the air space surrounding the operating unit.
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