HEPA Air Purifiers by Shark. Details:The Shark Air Purifier Pet uses Pure Air MicroForce to deliver fast, powerful, and quiet purification in a compact size. Clean Sense IQ senses air quality and auto-adjusts power to constantly maintain clean air in your home, while reporting results in real time. The True HEPA filter captures 99.98% of airborne particles like allergens, dust, and dander. Cleans up to 500 square feet.