A concealed wall-mounted folding urinal has a main body adapted to be mounted on an internal wail of a bathroom or lavatory in a building such as a dwelling. The hole injecting electrode comprises a transparent electrode at a light emitting area, and a metal electrode located at a portion other than the light emitting area and having a sheet resistance of 1 or lower. 3 with respect to the outer diameter of the fan body, and an axial height h2 at an outer peripheral edge of the blade is in a range of 0. The laminate includes at least one layer of viscoelastic material in contact with the surface portion and one counterlayer of rigid material.