Abstract: A cleaning sheet includes an aperture and a housing space. The housing space further includes a first space region, and a second space region which is shorter than the first space region. The first space region is disposed closer to the aperture than the second space region.

Abstract: A cleaning sheet and cleaning instrument that are structured to have a space for capturing dust in a cleaning region. Fiber bundle constituent fibers forming a fiber bundle and strips are configured to be bent along a bonding part so as to be raised up in a direction away from a holding region. The fiber bundle is configured such that, when a first strip and a second strip are raised, a first engagement part can be engaged with the fiber bundle constituent fibers, and a second engagement part of the first strip and a second engagement part of the second strip can be engaged with each other.

Abstract: Provided is a cleaning sheet which is capable of being mounted upon a plurality of retaining instruments, with a housing part thereof comprising an aperture and a housing space. The housing space further comprises a first housing region which is suited to a first retaining instrument, and a second housing region which is suited to a second retaining instrument.

Abstract: A cleaning sheet comprises an aperture and a housing space. The housing space further comprises a first space region, and a second space region which is shorter than the first space region. The first space region is disposed closer to the aperture than the second space region.