A passage connecting member 20 is provided between the sticking member 11 and the air permeable member 13. In the passage connecting member 20, the tube member 15 is inserted into a hole portion 28 configured by facing the first concave groove 22 of the first plate member 21 and the second concave groove 26 of the second plate member 25. The internal space of the tube member 15 constitutes a suction passage 15a. An annular water sealing member 30 is provided at the end 15 b of the tube member 15. The water sealing member 30 has continuous pores and is formed of a material that closes the continuous pores when touched by moisture. When the tube member 15 sucks moisture and the moisture reaches the water sealing member 30, the continuous pores of the water sealing member 30 are blocked and further suction of moisture through the tube member 15 is suppressed. Is done.貼付部材１１と通気性部材１３との間には、通路接続部材２０が設けられている。通路接続部材２０において、第１板材２１の第１凹溝２２と第２板材２５の第２凹溝２６との対向配置によって構成される孔部２８には、チューブ部材１５が挿入されている。このチューブ部材１５の内部空間が吸引通路１５ａを構成している。チューブ部材１５の端部１５ｂには、円環状の水封部材３０が設けられている。水封部材３０は、連続気孔を有するとともに水分に触れることにより連続気孔が塞がれる材質で形成されている。チューブ部材１５が水分を吸引してその水分が水封部材３０に至ると、水封部材３０の連続気孔が塞がれて、そのチューブ部材１５を介してそれ以上水分が吸引されることは抑制される。
