| 摘要 |
PROBLEM TO BE SOLVED: To provide a filter by a simple construction which does not damage air permeability even if the filter is used for long time and also capable of sufficiently capturing soot when it is used. SOLUTION: In a composite filter 10 capable of detachably being mounted to a sucking port of a range hood and capable of capturing the soot, or the like, in the waste gas sucked by the range hood by liquefying, the composite filter 10 is constituted of totally three sheets of planar filters 11, 12 and 13 consisting of two sheets respectively at the front and back and one sheet at the center and which are made in planar sheets having many meshes, at least two sheets of corrugated filters 14 put between these planar filters 11, 12 and 13 and which are made in corrugated sheets having many meshes, and a frame body for fixing outer peripheral edges of these corrugated filters 14 and planar filters 11, 12 and 13 and having an oil storing passage for flowing or storing the liquefied soot, or the like. |
