A moving picture coding apparatus including an inter-pixel filter having the filters for filtering decoded image data so as to remove block distortion which is high frequency noise around block boundaries. The hydrogen peroxide and a foaming soap are provided in separate first and second chambers of a product reservoir portion of a refill unit. The plurality of ultrasound transducers can be operated simultaneously, or in a programmed fashion whereunder one or more of, but fewer than all, of the transducers emit ultrasound energy at one time. A rotatable drum associated with the mirror holds loose articles for generating a kaleidoscope display; the drum may be rotated by an electric motor or manually. According to the invention, the protection of the tank level indicator relative to particles or ice crystals is improved.