Traditional methods will clean the surface of your carpet, but won’t reach the real cause of odors and reappearing spots--your carpet padding. Short of removing carpet, padding can only be reached with a tool like the SOS Sub Surface Carpet Extraction Hand Tool. The SOS Tool allows for targeted airflow to the pad and backing beneath the carpet to extract contaminants, odors, and liquids such as pet urine, feces, vomit, and more.