Ultrasonics is a cleaning system using high frequency sound waves. When the blind is immersed into the ultrasonic tank, sound waves create millions of tiny bubbles that travel at high speed through water. These tiny bubbles penetrate and gently lift the DIRT, DUST, GREASE, CITY GRIME, NICOTINE, BACTERIA, POLLEN AND OTHER ALLERGY IRRITANTS from the blind’s surface, the tapes, and the cords. The headrails and the gears are also cleaned and lubricated in the process.