| 摘要 |
PROBLEM TO BE SOLVED: To provide a filter hardly allowing strike-through of an oil component contained in oily smoke, etc. SOLUTION: The filter 1 of the present invention is an antifouling filter for a ventilator or a cooking range hood. The filter 1 is composed of a fiber sheet including fibers having a fiber diameter of 5μm or more and less than 35μm. A surface of the fiber has oil repellency. Oil-repellent treatment is applied on the surface of the fiber, or the fiber itself is composed of material having the oil repellency. If the oil-repellent treatment is applied on the surface of the fiber, fluororesin emulsion may be applied and dried on the surface of the fiber. COPYRIGHT: (C)2009,JPO&INPIT
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