Ergonomic light-weight (1.5 lbs) handle will increase operator comfort and productivity. Hospital-grade S-class filtration can trap 99.6 percent at 0.3 microns for greatly improved indoor air quality. Versatile on-board tools and extension wand make Sensor S-12 ideal for detail cleaning. Sensor S-12 protects itself against damage whenever bag is full or clogged. Brush roller indicator light alerts operator when brush height is set incorrectly. -