This vac also offers a 3-stage filtration system with a pleated filter design offers superior filtration for clean air exhaust. The wide mouth design scoops up large debris and simply flip up the brush to clean upholstery or extend the crevice to access tight spaces. The translucent, bag less dirt bowl has 42 percent more capacity than the original Pivot Vac and offers a side door function for emptying dirt. For a more thorough clean, simply remove the entire bowl from the unit and wash it in your sink. Filter flicker loosens embedded debris from filter to improve suction power. A convenient charging base allows for wall and table charging locations. Maximum initial battery voltage (measured without a work load) is 20 volts. Nominal voltage is 18 volts.This unit includes: Vacuum, Washable filter (model PVF110), Pre-filter, On-board Brush, On-board Crevice Tool and Charging Base.Charge duration – 4 hours.