SHARP KC-850U Plasmacluster Air Purifier Purify Technology: HEPA, Activated Carbon ENERGY STAR: Yes Operates Room Size: 254 sq. ft CADR Rating: Dust: 164 Pollen: 174 Smoke/Tobacco: 164 Speed Setting: 3 (High / Med / Low) plus Auto and Pollen Noise Level: Air Purifier with Humidifier: 51/34/23 dB (Max / Med/ Low) Air Purifier Only: 51/34/17 dB (Max / Med/ Low) Color: White Power Consumption: 50 / 9 / 3.3 W with humidifier, 50 / 11 / 6.6 W without humidifier