Adjustable mask

The utility model relates to the field of medical supplies. The utility model discloses an adjustable mask. The mask comprises a mask body (1), the left side and the right side of the mask body (1) are each provided with an adjusting mechanism (3). The adjusting mechanism (3) comprises an adjusting sliding strip (31) and a fixing strip (32). One end of the adjusting sliding strip (31) is a fixed end and is mounted at the upper edge of the left side or the right side of the mask body (1); the other end of the adjusting sliding strip (31) is a free end, the fixing strip (32) is fixedly installedon the side edge of the left side or the right side of the mask body (1) and arranged along the side edge, and the free end of the adjusting sliding strip (31) is matched with the fixing strip (32) and moves up and down along the fixing strip (32). Through the arrangement of the adjusting mechanism, the mask can be tightly attached to the face of a user in the using process, gaps are prevented from being generated, the m