Equipped with a 12 amp motor and patented WindTunnel technology, this bagged upright vacuum delivers powerful, deep-down cleaning performance. It uses three distinct air channels to lift and trap dirt, keeping it from scattering back into the carpet, so dirt ends up in the cleaner not on the floor. With red and green lights, its embedded DirtFinder system indicates areas that may need more cleaning attention. The green "clean" light remains on while vacuuming except when the detector senses a larger amount of dirt; then the red "dirty" light will illuminate to suggest additional vacuuming in the area until the light changes back to green. The unit also traps 99.97-percent of dust and pollens down to 0.3 microns in size thanks to its HEPA media bag. Other thoughtful details include non-marring wheels with bearings for lower push effort on carpet and safe use on bare floors, an ergonomic D-grip handle for added comfort and control, and a bag-check indicator so there's no need to guess when the bag needs changing. The cleaner also comes with fingertip on/off power control, five-position height adjustment, edge-cleaning bristles, and a headlight, as well as a deluxe stretch hose, a complete on-board tool set for above-floor cleaning, and a 31-foot power cord. The vacuum cleaner measures 13 by 15 by 43 inches and carries a one-year limited warranty.