PROBLEM TO BE SOLVED: To provide earplugs capable of improving comfort at the time of wearing by flowing gas. A guide body 20 includes a guide portion 21 having a coupling chamber 24, a compression portion 22 having a filling chamber 25, and a stopper portion 23 having an opening 26, and the filling chamber 25 has a coupling chamber 24 and an opening 26. The communication rod 30 includes a coupling section 31 that fits the coupling chamber 24, an extension section 32 that is arranged in the filling chamber 25, and a fixed section 33 that fits the opening 26, and the gas is in the fixed section 33. An air chamber 27 that is circulated outside the guide body 20 and in the filling chamber 25 and is filled in the filling chamber 25 with plasticity through the air channel 34 provided in the filling chamber 25 to accommodate gas in the filling chamber 25 is formed. Then, the gas enters the air chamber 27 to form the compression unit 22 in the initial state, and when the compression unit 22 is compressed, the gas is discharged and the compression state is formed in the compression unit 22. [Selection diagram] Fig. 1【課題】気体の流動により装着時の快適性を向上できる耳栓を提供すること。【解決手段】ガイド本体２０が、結合チャンバ２４を有するガイド部２１、充填チャンバ２５を有する圧縮部２２、開口部２６を有するストッパ部２３を備え、充填チャンバ２５が結合チャンバ２４及び開口部２６と連通され、支持棒３０が、結合チャンバ２４と嵌合する結合区間３１、充填チャンバ２５内に配置された延伸区間３２、開口部２６と嵌合する固定区間３３を備え、気体が、固定区間３３に設けたエアチャネル３４を通して、ガイド本体２０外部と充填チャンバ２５内で流通され、可塑性を備えた充填物４０が充填チャンバ２５内に充填され、充填チャンバ２５に気体を収容できるエアチャンバ２７が形成され、気体がエアチャンバ２７内に進入して圧縮部２２に初期状態を形成させ、圧縮部２２が圧縮されると、気体が排出されて圧縮部２２に圧縮状態が形成される。【選択図】図１
