“Hepa filter systems alone will NOT prevent dust and dirt particles from re-entering thru the exhaust system. Does this vacuum have the sealed system technology that prevents this from happening?”

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• Hello Lighthouse55, Yes, indeed! The Shark - Rotator Professional Lift-away Hepa Bagless 3-in-1 Upright Vacuum, model# NV501 comes equipped with The Shark® Anti-Allergen Complete Seal Technology® that traps dust and allergens, keeping them out of the air you breathe. Kind regards, Customer Care Team

  Answered by Shark Support Team 9 years ago

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