Home carpet extraction machines typically lack the heat and extraction power of professional units. Good thing Vivesan works well in both. Karen writes, "I shampooed my bedroom carpet that was severely stained with all types of stains. I used a home carpet shampooer and expected typical mediocre results. I was absolutely amazed at the results. The carpet was totally clean, not a stain left with very minimal pre-treatment on my part. I have recommended Vivesan to others who have been amazed with the same phenomenal results."