Features:

• Self-propelled locomotion with WindTunnel technology
• Allergen filtration with HEPA filter
• Embedded Dirt Finder system
• Onboard hose and attachments, including powered hand tool
• 14 by 15 by 43 inches

Editor Reviews:

Product Description:
Bring your home to the brink of laboratory clean conditions with this amazing HOOVER U6439-900 WindTunnel! This Upright Vacuum Cleaner is self-propelled in forward or reverse -- so the machine does virtually all the work! 15-inch cleaning width Non-marking furniture guard Deluxe stretch hose extends up to 11' when using both wands and crevice tool Extra tools - crevice tool, furniture nozzle, dusting brush, and two wands 31-foot power cord with quick release Headlight

Amazon.com Review:
Perfect for deep cleaning without excessive strain, the self-propelled Hoover WindTunnel Ultra upright takes charge of its own locomotion both coming and going. In addition, Hoover’s WindTunnel technology creates a powerful double air path for maximum suction and cleaning. The vacuum even provides feedback on cleaning progress with the Embedded Dirt Finder--a feature that scans the floor for debris, signaling you if there’s still dirt to be picked up. You can operate the Dirt Finder on a regular setting for your routine cleaning or on a high setting for your deep-cleaning sprees.

The WindTunnel Ultra is designed for both bare floors and carpets, with a 15-inch cleaning path and three adjustable nozzle heights to accommodate variation in carpet depth. Dirt collection is bagged using Hoover’s Microfiltration system, and a helpful indicator signal keeps you posted on the bag’s status. A HEPA filter assists the bag, trapping 100 percent of dust mites and 99.98 percent of ragweed and common grass pollens.

The vacuum comes handsomely equipped for attachment cleaning with a stretch hose, two extension wands, a crevice tool, an upholstery tool, and a dusting brush all on board. (The Dirt Finder does not work with the attachments.) The most rigorous attachment is a powered hand tool with its own rotating brushroll--great for carpeted stairs and durable upholstery. Other useful elements include quick-release cord hooks, a carrying handle, a headlight, and a view window over the brush roll. Hoover covers the machine with a one-year warranty. --Emily Bedard

Rating : - Best bagged out there
I purchased mine through Heartland America, and it was refurbished. I have had several back surgeries and wanted something to replace my junky Bissell, but I was worried about the self propelled "jerking" me around. My mom has one so I tried it and that was all it took! I dont see how I ever functioned without it. This is a great product that I would even reccomend to my ex-wife!