The Shark Air Purifier 4 quietly distributes air through 4 powerful fans. Clean Sense IQ technology tracks air quality & auto-adjusts power to constantly maintain clean air in your home. A Shark Anti-Allergen HEPA Filter captures airborne allergens, dust, dander, and particles. Advanced odor protection guards against cooking smells, smoke, and more. Cleans medium-sized spaces. SHARK AIR PURIFIER 4: Air purification for the home, up to 1000 sq. ft. based on one air change per hour 4-FAN AIRFLOW: 4 high-speed micro-fans work together to evenly distribute airflow across the filter...