Label and ventilation housing using the same

摘要

A label (1) having a vent filter function and a ventilation housing having a reduced cost are provided. The label comprises an ink-receiving layer (2) and a pressure-sensitive adhesive (3) layer for applying the ink-receiving layer to an adherend, wherein the ink-receiving (2) layer is an air-permeable porous material comprising at least one resin selected from PTFE and polyolefins and the label has, formed in the pressure-sensitive adhesive layer (3), an air passage hole (4) which extends from one to the other side of the pressure-sensitive adhesive layer (3) in the thickness direction and enables a gas which has permeated the ink-receiving (2) layer to pass therethrough. The label (1) may further include an air-permeable support layer (6) and an air-impermeable reinforcing layer (7) disposed between the ink-receiving layer and the pressure-sensitive adhesive layer.