G.A.S AirOzone 250mm Inline Ozone GeneratorG. A. S AirOzone 250mm Inline Ozone Generator An inline ozone generator that sits directly in your ventilation system (Carbon Filter Fast Clamp Extractor Fan Fast Clamp AirOzone Ducting out). Works alongside your carbon filter as a secondary layer of odour destruction, catching anything the carbon missed. For growers where absolute discretion is critical or where carbon filters alone aren't quite cutting it. Why growers choose the AirOzone 250: