PV6 PAC-VAC W/TOOLS KIT 6QT. Providing a faster and more cost-effective alternative to traditional upright vacuums, Tornado's PV 6 and 10 Pac-Vac backpack vacuums are the most powerful, easy-to-use and quiet backpack vacuums you'll ever use. Designed for superior operator comfort and increased productivity, these super-quiet units eliminate the need to bend over as required with traditional upright vacuums. Not only do workers expend less effort doing their jobs, getting in and out of tight or confined spaces becomes a breeze. As a result, cleaning productivity dramatically increases to over 7,000 square feet per hour.