YueYueZou&reg; Portable Ozonizer Ozone Generator for Air Water Plant Sterilizer Purifier 500mg/hr Can be used as Air Water Purifier Cleaner Note: The use of a very long period of time needs cooling fan, heat dissipation Ozone output capacity : 500MG/HR Suitable for water treatment equipment,large-scale purification equipment ozone machine , swimming pool,water plant and sewage treatment equipment.