Product Name: 220V Portable 20g/H Ozone Generator Used for Air Purification Model NO.: ZOM-20G220V Type: High Pressure Discharge Type Installation: Portable Frequency: >1000Hz Gas: Air Cooling Method: Air-Cooling Dielectric Material: Ceramic Plate Certification: RoHS, CE Input Voltage: 220V; 110V Trademark: N Transport Package: Carton Specification: CE, RoHs Origin: Anhui HS Code: 84219910 Product Description ozone output20g/hPower240wInput voltage220v 50Hz or 110v 60Hzsize264MM*240MM*222MMWe can produce this machine with different output. We can put 3.5g, 5g, 7g, 10g, 14g and 20g ozone generator inside the machine. Also we can assemble bigger machine for you.