Soundproofed, ultra-large-capacity (10 gal. / 46 L), bagless, two-motor unit with cyclonic action. 2 x 355 AW of suction power. Picks up solids and liquids. Includes a cartridge filter for optimum air filtration and increased motor protection if fine dust is picked up. Designed to take on up to 9,500 square feet in cleaning surfaces.