Due to this special filtering system, 99.8% of sandblasting dust is eliminated. This is achieved by a built in water-recirculation system, which requires no special installation. The air, saturated with dust particles, is compressed in a pipe and sprinkled with water, making the dust particles heavier than air. The sediment precipitates in a collection reservoir at the base of the unit. The filtered clean air is then returned to the atmosphere. Air consumption 60 L/M. Dimensions 100 x 100 x 270mm.