Is that a stain ?
Staining occurs when a substance discolors the carpet fibers with its pigment, such as a wine spill. Before attempting to remove it, first determine the cause of the stain, then follow the appropriate procedures from the chart below.
Soiling
Soiling results from dirt, dust, ash, or other particles settling on a carpet. These particles create friction at the base of the carpet, weakening the fibers, leading to loss of pile height and density, as well as a dull appearance. Regular cleaning is essential to maintain the appearance of your carpets and keep them looking great.