The answer to 'why is my carpet filthy' is that there are several common causes, including high foot traffic, pet accidents, spills, and lack of regular cleaning. Carpets can become soiled over time from everyday use, and without proper maintenance, the dirt and debris can build up, making the carpet appear dingy and discolored.
Some of the most common symptoms of a dirty carpet include visible stains, matted or flattened fibers, and an unpleasant odor. The good news is that there are both DIY and professional solutions available to restore your carpet's appearance and cleanliness.