| 摘要 |
To provide an air filter in which a filter pack is not moved in use as well as in which the filter pack does not fall off when used in horizontal direction. An air filter in which a sheet-shaped sealing material made of glass fibers is inserted into a zigzag-shaped end surface of a filter pack formed by folding a filter medium in zigzag shape and by inserting corrugated separators into folding spaces, and at least the zigzag-shaped end surface of the filter pack is surrounded by a filter frame having a C-shape in cross section and including folded portions formed by inwardly folding open ends, which includes a stopper between the folded portion in a downstream side and the filter pack and strip-shaped sealing materials made of glass fibers are embedded between the sheet-shaped sealing material and the filter pack so as to closely contact the separators in the folding spaces of the filter pack. |
