A resizable mask comprising a first body portion and a second body portion coupled to the first body portion. The first body portion has two first openings corresponding to the eyes of the human face, a second opening corresponding to the mouth of the human face, and a nasal region corresponding to the nose of the human face. The second body portion is coupled to a lower edge of the first body portion. Wherein, the first body portion and the second body portion have a cutting line, so that the second body portion can be completely separated from the first body portion by being torn away from the lower edge of the first body portion. By its structural design, the user can select whether to separate the second body portion from the first body portion as needed. The separated second body portion can be applied to other parts without wasting.一種可調整大小的面膜，包含一第一本體部，及一連接於該第一本體部的第二本體部。該第一本體部具有兩個對應於人臉之眼睛的第一開口、一對應於人臉之嘴部的第二開口，及一對應於人臉之鼻部的敷鼻區。該第二本體部連接於該第一本體部的下緣。其中，該第一本體部與該第二本體部之間具有一切割線，使該第二本體部能由該第一本體部的下緣撕離而與該第一本體部完全分離。藉由其結構設計，使用者可視需要選擇是否要將該第二本體部由該第一本體部分離。分離後的該第二本體部可以敷在其他部位而不浪費。
