The Plasmacluster® 7000 Series KCP110CW by SHARP is one of the best air purifiers for extra large rooms. Effective up to 2,603 sq. ft. at one air change per hour, the KCP110CW HEPA air purifier for 500 sq. ft. rooms will filter the air in the AHAM Suggested Room Size of 538 sq. ft. at 4.8 air changes per hour. 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 odours; 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. The KCP110CW also includes a humidifier for 500 sq ft spaces that makes your home more comfortable year-round for your total air care system. Plasmacluster® Technology splits water molecules into positively and negatively charged ions, which spread throughout the room, surrounding airborne particles. This system effectively restores the natural balance of ions in the air, like near a waterfall or just after a thunderstorm. This restored balance helps refresh the air and leaves it cleaner smelling. The KCP110CW features Max, Med, and Low fan speeds, plus Auto. In Auto mode, the dust and odour sensors will monitor your air quality and adjust the fan speed automatically. The convenient fixed caster wheels make it easy to move the KCP110CW from room to room. Additional settings of the KCP110CW HEPA air purifier for extra large rooms are available in the app and via voice command include Sleep, Pollen, and Express Clean Modes. Weekly Scheduler, Filter Replacement Status, Auto Presence ON/OFF, and Air Quality Information History are also exclusively available in the Sharp Air App. With Library Quiet™ operation, the KCP110CW is ideal for bedrooms and living rooms. Sleep Mode is as quiet as 21 decibels. This is one of the quietest Air Purifiers with a HEPA filter available anywhere. The KCP110CW’s energy efficient operation means it's easy on your wallet. With its advanced technologies, it is more energy efficient than standard models, making it ENERGY STAR® qualified. SHARP Plasmacluster® Active Ion Technology has been used in over 100 million products worldwide, including leading auto makers and appliance manufacturers. It’s no wonder people around the world trust SHARP. Now that is Simply Better Living.