A mask includes: a mask body configured to define a space that covers at least one of a nose and a mouth of a subject； and a cushion member extending along a peripheral edge portion of the mask body. The cushion member includes: a first region that includes a portion that contacts a face of the subject when fitted； and a second region positioned between the first region and the mask body. A surface of the first region has a higher non-adhesive property than a surface of the second region, and the second region has transparency that allows the space to be seen through.
