Sweep longer and with optimum performance with the S20's SweepMax dust control system. Coverage rate up to 12,300 m²hr 132,300 ft²hr with single brush; 15,200 m²hr 163,680 ft²hr with dual brush. Dust filtration down to 0.5 microns @ 99% efficiency. Designed for use at airports, streets, warehouses, parking lots etc.