The ozone generator using leading technology, polymer-electrolyte-membrane (PEM), which is produce ozone using pure water (RO water). The advantage of this technology is low voltage (3-5 V DC), high concentration (500mg/l) and no harmful gas (More Safety).         Specification:         P roduct Name: PEM Ozone generator     Model: DJ-Q100     Input voltage: 85-270V / 50-60Hz   Input power: 70W Ozone output: 500mg/hr Ozone concentration: 250mg/l-280mg/l Work environment : 4~35C <85% ( humidity ) Dimension: 590x370x145mm Gross Weight: 11 Kg         For this type of ozone generator, we have ozone output range from 500mg/hr to 50g/hr, please feel free to contact us for more detail.