Shark POWERDETECT Upright Vacuum Cleaner with HEPA Filter, Heavy Duty Vacuum with Powerful Suction for Pet Hair Pickup, DuoClean Technology, Powered Lift-Away, Ideal for Carpets & Hardfloors, AZ4002

FLOOR DETECT: The Intelli-Sense ultra-sonic sensor detects what floor type it’s on, and the POWERDETECT reacts by automatically adapting its suction and brushroll speed, for optimal performance on ALL surfaces, including hardfloors and carpets.DIRECTION DETECT: Shark’s direction Intelli-Sense sensor recognizes which direction you are vacuuming, and automatically directs powerful suction to whatever direction is needed, for maximum cleaning in both forward AND reverse, to save you time.NO HAIR WRAP: The self-cleaning brushroll delivers powerful pet hair pickup without wrapping hair.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.)