| 摘要 |
PROBLEM TO BE SOLVED: To peel oil and the like attached to an impeller for air exhaustion from a coated surface for a long time by flowing water, even without providing hydrophilic coating.SOLUTION: A cation exchange film 17 for dividing into two, acidic water and alkali water, is provided at the center of a storage container. An electrode 16 for acidic water or an electrode 15 for alkali water is provided at each container. A pipe 18 for alkali water is provided. The alkali water is supplied to the inside of a blower casing 6 from a nozzle 13 for alkali water and accumulates, the alkali water infiltrates into oil and the like attached to an impeller 5 for air exhaustion, and the oil and the like is peeled from the impeller 5 for air exhaustion. Thus, a range hood can be acquired which flows the oil and the like attached to the impeller 5 for air exhaustion by the alkali water and which can peel it from a coated surface for a long time.SELECTED DRAWING: Figure 1 |
