VENT FILTER AND METHOD FOR MANUFACTURING THE SAME

摘要

A vent filter wherein a vent film is less likely to be broken when cut, and a measure to shrinkage is taken while keeping properties or functions characteristic to the vent film is maintained.  The vent filter, which comprises a frame-shaped adhesion layer (2) and the vent film (3) made to adhere to the adhesion layer (2), is configured such that the periphery of the vent film (3) is outside that of the frame-shaped adhesion layer (2).