The most common use for sonic technology was cleaning: * Sonic shower, reputed to be an unpleasant system for washing up * Sonic toothbrush, considered flashy in earlier tales, but simply fancy and expensive in later ones * Sonic toilet, common on space ships and stations * Sonic cleaner * for hands * for faceplates of battle armor * Sonic scrubber, for use as a hand-vacuuming system or for cleaning clothing * Sonic laundry, for cleaning clothing * Laser-sonic decontaminator, for use in dealing with hazardous materials