Coway AP-1512HH Mighty Air Purifier with True HEPA and Eco Mode Air Quality indicator Filter change indicator Ionizer & Eco mode. Fan Speed-3 levels. Timer-1,4,8 hour. Power Consumption-4.9~77.8 W Recommended Room size : 49 sq.m (528 ft). Noise level : 24.4 - 53.8 dBA Product dimensions 16.8Wx 18.3H x 9.6D inches Airflow rate: 7.6 CMM. Noise level: 24.4 - 53.8 dBA