| 摘要 |
An air filtration system for a kitchen stove has an inlet (18 fig 1), a filter 24, a duct 28 connected between the inlet and the filter, and an outlet 64 from the filter for discharging cleaned air back into the kitchen. The system has a blower 26 for drawing vapours through the duct and into the filter, and includes a dehumidifier 68 and heater 74 downstream of the filter. The filter includes a water tank 30 including a drain line (50 fig 3) and a water level float (52 fig 4), through which air is bubbled from duct 28. The duct may be split into three lines (32,34,36 fig 3) having perforations 38, which reside beneath the water level 40. The dehumidifier is positioned in the blower exhaust duct 62, and includes a drain line 70 coupled to the water tank. Fragrance may be added to the air stream before discharge into the kitchen, and the tank may include a fragrance inlet line (56 fig 3) and a water inlet line (48 fig 3). The tank may further include a shelf 42 for collecting air and water vapour, the shelf having a downwardly extending forward edge 44, and a perforated plate 46 extending upwardly from the forward edge. The blower may include an impeller 58 driven by an electric motor 60.
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