[PROBLEMS] To provide a medical mask that has a stable wearing feeling and excellent sealing properties in a wearing state and that can be easily attached. A mask main body 20 of a medical mask 10 is made of a soft elastic material, and covers a covering portion 21 that covers a wearer's nostril 2 and mouth portion 3 and a rear peripheral edge 21a of the covering portion 21. It has a lip portion 22 that extends inwardly from the periphery, and a chin rest 28 that extends rearward from the lower end of the covering portion 21. The fastening strap 30 is formed of a single annular elastic member, and has an annular side string passage portion 50 extending in the front-rear direction Z on the outer surfaces of both side portions 26 and 27 of the covering portion 21 and the outer surface of the chin rest portion 28. In FIG. 2, the main body is connected to the mask body 20 via an annular central string passage portion 60 extending in the front-rear direction Z. The chin rest 28 is pressed against the wearer's chin 4 by the lacing 30 in a state where the lacing 30 is wound around the head 1 of the wearer. [Selection] Figure 6【課題】着用状態において、安定した着用感と優れた密閉性を有するとともに、取付操作を容易に行うことのできる医療用マスクの提供。【解決手段】医療用マスク１０のマスク本体２０は、軟質弾性材料から形成されており、着用者の鼻孔２と口部３とを被覆する被覆部２１と、被覆部２１の後方周縁２１ａの全周から内方へ延びるリップ部２２と、被覆部２１の下端から後方へ延びる顎当て部２８とを有する。締紐３０は、１本の環状の弾性部材から形成されており、被覆部２１の両側部２６，２７の外面において前後方向Ｚへ延びる環状のサイド紐通し部５０と、顎当て部２８の外面において前後方向Ｚへ延びる環状の中央紐通し部６０とを介してマスク本体２０に連結される。締紐３０を着用者の頭部１に掛け回した状態において、締紐３０によって顎当て部２８が着用者の顎部４に押し当てられる。【選択図】図６
