V888-B with PCO, ESP, remote control, LCD, filter replacement filter, use for hospital, commercial areas6-layer air purification system in one: Pre-filter + ESP+ Activated carbon + PCO technology+ UV + Negative ion+ Air freshener Powerful airflow: 250m³/h to supply fast air ventilation Timer setting for sterilization, current time, auto power-on time, auto power-off time UV lamp and Negative ion power on/off Anti-pollen power on/off Air freshener included Remote control operation LCD Display Intelligent lock to present from childrens mistake operation Sterilization, purification, refreshing: three working mode optional UV lamp replacement indicator One-touch operation for night use(sleeping mode for 8 hours work) Technical Data:Product size(inch/mm) 16.10x8.27x20.71/409x210x526Weight lbs/kg 18.08/8.2Rated Voltage 100-120V/60Hz 220-240V/50HzAir delivery rate(m3/h)300 maxNoise Level(low speed) <35dbNegative ions 3 million/ccUV light wavelength 254nm(2pcs)RatedPower 76WCoverage area753.50 sq. ft /70m2Fan speed4 speed adjustableUV replacement IndicatorYes LCD DisplayYesUV Lamp life15000 h