Metal or porcelain lighting should be cleaned with a soft, dry cloth or duster.   Never spray fixtures with a cleaning solution or polish.   If it is necessary to use a cleaning agent, please apply only a mild detergent to a soft, damp cloth for gentle cleansing.  DO NOT use scouring agents, abrasive sponges, hydrochloric acid, vinegar, ammonia, petroleum distillate or metal silicates. Shades should be dusted on a regular basis with a soft cloth.