The Plasmacluster 7,000 Series KC860U Air Purifier with Humidifier by SHARP is your ideal choice for large rooms. Effective up to 1,650 sq. ft. at one air change per hour, the KC860U will filter the air in the AHAM Suggested Room Size of 341 sq ft. at 4.8 air changes per hour.The SHARP long-life True HEPA filter and the long-life Activated Carbon filter last up-to 5 years, depending on the environment.The KC860U is AHAM Verifide Tested to provide a Clean Air Delivery Rate (CADR) for three common irritants and allergens, Smoke (220), Dust (231), and Pollen (245). It is certified by the California Air Resources Board (CARB) to meet its strict emission standards.The KC860U features Max, Med, and Low fan speeds, plus Pollen, Quick Clean, and Auto Mode. In Auto Mode, the sensors will monitor your air quality and adjust the fan speeds automatically. The KC860U includes a humidifier that may make your home more comfortable. The Library Quiet Low setting is perfect for the bedroom. Color: White.