... odors 2. CE & RoHS 3. Portable TD-A50 Plug-in Air Purifier Ozone GeneratorSpecifications Model No.AT50Input VoltageAC110~240VPower <5WDimensions ... Concentration50mg/h Effective Area10~30m2Ozone Discharge StyleCeramic tubeColorWhite&black Weight274g Plug TypeEU, AU, UK, US CertificationCE, RoHS, WEEE ... Preparation: Very the unit is off or not before plug in.Start: Turn on the right switch, C-Type power ...