Carpet pile is gently combed to remove lower level grit and dust with the appropriate interchangeable high-speed rotary brush. Rotary brushing ensures your carpets are fully prepared for the ultimate cleaning process. This thorough dry-cleaning preparation allows your Carpet Cleaning Professional to begin a thorough examination of your carpet. If significant stains have been observed, (Wine, Coffee, Food, Candle Wax etc.) additional spot cleaning may be recommended. Spot Cleaning of individual stains requires care by hand to ensure maximum cleaning without damage to the twist pile of your carpet.