It is essential to know the materials in any rug requiring cleaning. Today’s market offers polypropylene, nylon, Dacron, Olefin and other derivatives in machine-loomed rugs. Many cleaning agents used on wall-to-wall carpet will work on these machine-made rugs. Always read the instructions before applying any product! Wool rugs require more attention to quality of materials and colorfastness of dyes. While most rug owners can deal with small accidents, major problems and cumulative soiling are best handled by a business or individual trained in hand- washing oriental rugs. This process, done correctly, will keep an expensive rug in good condition for years to come.