To provide a filter component which enables an adjustment of the desired size with a simple cutting by hand changing the size to fit to an inlet of a range hood without using any scissors, and at the same time, enables an effective prevention of pollution of a mesh made of metal.

The filter component is used by being stretched on the inlet of equipments provided with suction air and discharge air functions, and is characterized in that a fragile part to cut to the size corresponding to an aperture size of the inlet is formed.