Advantages of Ultra 2000 air filter: Advantages of ultraMulti-stage filtration technology for clean air3 fan speeds and sleep/night functionIonizerUV light + photocatalytic filter elementFormaldehyde filteringAntibacterial nano-silverRemote controlRemoval of contaminants from the airHigh airflow rateFunctionally optimized and elegant designAutomatic mode, sleep function and timerAir quality indicator, filter replacement indicator Designed for residential spaces, recommended up to 55 sqm Specification: Voltage Rating: 230V~/50Hz Nominal power: 50W Timer (hours): 2, 4, 8 and 12 Weight: 12.5 kg Dimensions (W * H * D): 416 x 625 x 251 mm Water tank: 3 liters Noise level: 59dB(A) Airflow: max. 350m3/h Humidification capacity: max. 300 ml/h