Removes More Dirt - The Hoover?? lightweight bagged upright removes more dirt from carpet than other lightweight bagged upright models tested*, so you can achieve the clean results you expect with less effort. WindTunnel?? Technology - Technologically engineered to achieve a cleaner clean. With a combination of direct air flow and Hoover's Patented WindTunnel?? Technology dirt is extracted from your carpet in less time**, so you can move on to more important tasks. HEPA Bags - Bag made with HEPA media. HEPA media traps 99.97% of dirt, dust and pollens down to 0.3 microns for better air quality than bags made with standard paper of allergen media.*** No Dirt Puffs - Self-sealing bag prevents dirt puffs from escaping back into your clean room. Check Bag Indicator - Illuminates when the bag is ready to be changed. Lightweight Design - Weighs less than 12 pounds for easy transport. Intuitive Controls - Dual speed cleaning maximizes cleaning options and the power button located conveniently in the handle, right where it is needed. Floor to Ceiling Clean - A lightweight, yet powerful portable canister is included for hard surface and above floor cleaning needs. With a crevice tool, dusting brush and hard floor attachment, this portable canister cleans hard to reach and delicate areas.