Pick up more dirt than you could have imagined with this 12-amp vacuum cleaner. Uses the WindTunnel™ technology, which promises to pick up more dirt than any other clean-air upright. Nine-stage allergen filtration system works with reusable, easy-change three-layer allergen filter cloth bag that is capable of filtering out 100% of dust mites and their eggs plus 99.98% of ragweed and common grass pollens--an ideal function in the hospitality industry where high standards of cleanliness must be maintained.