Mask and mask assembly

The utility model discloses a mask and a mask assembly, and the mask comprises a mask body which is provided with a nose bridge part used for covering the nose bridge; the nose bridge adjusting structure is arranged on the mask body and used for forming a nose bridge extending part connected with the nose bridge part in the first state. According to the mask, through the arrangement of the nose bridge adjusting structure, on one hand, under the conditions that endoscopic examination is conducted, a patient needs to expand the mouth and lift the nose bridge, the nose bridge extending part can be formed and used for wrapping the nose bridge of the patient, it is guaranteed that the face of the patient is covered and closed, and the infection probability of medical staff is reduced; on the other hand, when the mask is worn normally, the mask can be adjusted according to the face shape difference of different people, so that the mask can be better attached to the nose bridges of different people. 本申请公开了一种面罩和面罩组件，