Characteristic EFFECTIVE FILTERS Removes dust, pollen, fungus, mites, bacteria, viruses. LOW NOISE It emits sound less than 65 dB, the level of the traffic noise. FLEXIBLE WORKING MODES Regulation depending on the degree of pollution and time of day. Your browser doesn't support HTML5 video. PHOTOVOLTAIC PANELS / LED SCREENS Additional equipment of the purifying station. The full technical specification of the Oxygen City Air Filter can be found HERE