Household Air Purifier with Fibre Filter It succeeds all the purifying technologies like the washable ionizer, biologic HEPA, UV light, also adopt the replaceable ozone generator, the computer system for car, LED color screen. The environment nurse series air purifiers will bring you humanistic protection and solicitude for your home environment Specifications: Input voltage: 100 to 120V/220 to 250V AC Input power: 26/33/38W Ion density: 8,000,000ns/cm3 Fan speed: low/medium/high Air flow rate: 150/200/230m3/hr Noise level: 25/32/40dB Applicable area: 325-foot 2 (30m2) Dimensions: 305 x 330 x 170mm Weight: 6kg Advantages: Functions Ion: more than 8 million ions are generated per second makes you a fresh environment at home Technical innovation: Washable ions generator: there are 4 carbon fiber heads to generate ions and also can be cleaned easily. So it ensures the high density of ions being generated continuously Replaceable ozone generator: the ozone generator is replaceable which makes its longevity 22 times much more the traditional ones Humanistic technology Auto mode: it is controlled by the in-built Samsung IC to set manual/auto/timer mode according to your need Safety switch: The unit will power off automatically when the filter cover is open