The Advance Terra® 128B Sweeper has been engineered to address a wide span of floor cleaning needs. The main broom counter rotates against the direction of travel providing superior cleaning. The side broom can be lowered to edge clean while you sweep. The Terra® 128B is quiet to not disturb, or even be noticed by others close by. Since it is battery operated, you have free roaming abilities and no cord tripping hazards. The large 1.4 cubic foot (40 L) hopper and over-throw sweeper design allows you to spend more time cleaning and less time emptying the hopper. The Terra® 128B has excellent dust control. It utilizes a two-stage filter system that consists of a pre-filter grid and a main panel filter. The pre-filter traps larger light debris and particles allowing the main filter to work more effectively. The manual filter shaker frees up dust from the filter to maintain high dust control efficiency. An electric filter shaker option is also available. The onboard charger makes recharging the unit fast and simple. Recharge at anytime and anyplace without the need for a special battery room. Since productivity matters, the Advance Terra® 128B is over ten times more productive than a person working with a manual push broom. And since the Advance Terra® 128B is powered with traction, operators remain fresher for other operations after sweeping.