Patent ID: 8246726

Claim:
A ventilation member to be mounted to a housing, comprising: a gas permeable membrane; a support body for supporting the gas permeable membrane, the support body being configured to form a ventilation passage from an opening of the housing to the gas permeable membrane when the support body is fixed to the housing; and a sealing element for sealing between the housing and the support body at a position surrounding the opening, wherein the support body includes: a main portion having a front surface on which the gas permeable membrane is attached and a back surface for pressing the sealing element against the housing; and a plurality of leg portions extending from the back surface of the main portion so that the leg portions can be inserted into the opening, the leg portions each having, at its end, a hook to be caught by the housing, and the main portion has, at positions corresponding to the hooks in a direction in which the leg portions are inserted, through-holes through which the hooks are exposed as seen from a side of the front surface of the main portion, and the through-holes and gaps between the adjacent leg portions form the ventilation passage.