POWERFUL SUCTION: Stronger suction than the Bissell SurfaceSense Allergen Pet Lift-Off Upright Vacuum 3415. (Based on ASTM F558. measured at the hose.) BETTER DEBRIS CLEANING: Cleans debris better than the Dyson Ball Animal 3. (Based on a geomean of combined tests -IEC62885-2 Sec 5.3 FWD. IEC62885-2 Sec 5.3 REV. IEC62885-2 Sec 5.5 FWD. IEC62885 Sec 5.5 REV) DUOCLEAN DETECT: The two-brushroll system with four sensors automatically senses hidden dirt. debris. and hair. and the Detect Pro reacts by boosting suction and brushroll speed for maximum performance. DIRECTION DETECT: While most vacuums tackle debris only when moving forward. the DuoClean Detect nozzle picks up debris in both forward and reverse for powerful cleaning. EDGE DETECT: Automatically increases suction power when cleaning within 2 inches of an edge or wall. Delivers maximum cleaning performance along edges and corners. and even from under baseboards—no need for extra attachments or a broom and dustpan. FLOOR DETECT: An ultrasonic sensor detects the floor type and the Detect Pro reacts by automatically adapting its suction level and brushroll speed for optimal performance on all surfaces. DIRT DETECT: Detects hidden dirt. debris. and hair embedded deep inside carpets. and devours it by automatically boosting cleaning power—messes can't hide from Dirt Detect. GUARDS AGAINST BAD ODORS: Odor Neutralizer Technology guards against bad odors inside your vacuum for a fresh-smelling home. ANTI-ALLERGEN COMPLETE SEAL: Works with a HEPA filter to trap 99.99% of dust and allergens inside the vacuum. keeping them out of the air you breathe. (Based on ASTM F1977 of particles 0.3 microns or larger. Allergens refers to non-living matter.) 5-year warranty and additional accessories for tough messes. -