The Tornador Black has newly developed rotational technology inside the funnel to provide faster, more powerful cleaning compared to the Tornador Classic. Professional detailers will love the speed and effectiveness of the Tornador Black. The Tornador Black produces enormous power with a very small air compressor. All you need is a compressor with a discharge rate of at least 270 l per minute (9.55 cfm). This can be achieved using compressors with a reservoir of as little as 50 l capacity. You`ll see the liquid turning dirty as grime is released from the surface. Wipe with a microfiber towel. Then turn the dial to shut off the water and use the compressed air to dry the cleaned area. It`s that simple.