The Sebo Duo cleaning / agitating machine. Vacuum cleaners remove loose and dry matter. For soiling and stains, we provide the DUO. Cleaning without using water, it is effective and avoids wet cleaning problems such as carpet shrinkage, adhesive damage, smell and long 'area out of use' periods due to lengthy drying times. The contra-rotating brushes lift and restore flattened pile, bringing carpet back to life.