Features: 1Made of quality materials this ozone generator is safe and durable to use 2High ozone concentrations can be used to remove formaldehyde sterilize and refresh the air 3Take advantage of high voltage use dry air or oxygen in the air to produce O3 4Applied to water purification equipment air purifier disinfection cabinet oxygen bar dehumidifier refrigerator etc 5This Ozone generator is portable easy for professional DIY use Specification: Features: Made of quality materials this ozone generator is safe and durable to use. High ozone concentrations can be used to remove formaldehyderefresh the air. Take advantage of high voltage use dry air or oxygen in the air to produce O3. Applied to water purification equipment air purifier disinfectingcabinet oxygen bar dehumidifier refrigerator etc. This Ozone generator is portable easy for professional DIY use. Specification:Condition: 100% Brand NewMaterial: Metal + PlasticInput Voltage: 110V/220VOutput Voltage: 3.5KVPower: 15WFrequency: 11Khz Ozone Output: 500mg/h Size: Shown as PictureWeight: approx.249g~254g/8.78oz~8.96ozPackage List:1 x Ozone Tube1 x Circuit Module 1 x Air Pump1 x Air StoneNote:1. Please allow 1-3cm error due to manual measurement thanks for your understanding.2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object please take the real one as standard.