You know the importance of indoor air quality. You should have an air purifier from a brand you trust. According to the EPA, when used properly, air purifiers can help reduce airborne contaminants, including viruses, in a home or confined space. The Plasmacluster 7,000 Series KC850U Air Purifier with Humidifier by SHARP is your ideal choice for medium-sized rooms. Effective up to 1,230 sq. ft. at one air change per hour, the KC850U will filter the air in the AHAM Suggested Room Size of 254 sq ft. at 4.8 air changes per hour. Raise your expectations of an air purifier and ensure a lower total cost of ownership over the years. Other brands may suggest replacing the filters every six months; that can really add up! Both the SHARP long-life True HEPA filter and the long-life Activated Carbon filter last up-to 5 years, depending on the environment. The KC850U meets the strict energy efficiency criteria to earn the ENERGY STAR® Rating. According to energystar.gov, Energy Star Rated products use less energy, save you money on your electricity bill, and help protect the environment by causing fewer harmful emissions from power plants. The triple filtration system helps clean the air that passes through the filters in three ways. The washable, microscreen pre-filter traps dust and other large airborne particles. The activated carbon deodorizing filter helps reduce some common household odors. Finally, the True HEPA filter effectively captures 99.97% of particles from the air that passes through the filter from 0.3 microns and larger. Beyond passive filtration, our KC850U features Plasmacluster Ion Technology, dispersing ions into the room for an active cleaning process. Sharp Plasmacluster Ion Technology has been tested in 17 tests by laboratories in the United States, United Kingdom, Germany, Japan, South Korea, China, and Vietnam. The KC850U is AHAM Verifide Tested to provide a Clean Air Delivery Rate (CADR) for three common irritants and allergens, Dust (164), Smoke (164), and Pollen (174). It is certified by the California Air Resources Board (CARB) to meet its strict emission standards. The KC850U 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 KC85OU includes a humidifier that may make your home more comfortable. The Library Quiet, Low setting is perfect for the bedroom. Sharp Plasmacluster Ion Technology has been used in over 90 million products worldwide, including leading auto makers and refrigeration appliance manufacturers. It’s no wonder people around the world trust SHARP. Now that is Simply Better Living.