The 500mg Ozone Generator produces high concentrations of ozone to remove formaldehyde, disinfect, and refresh air. Made of high quality materials, it is safe and durable. It uses dry air or oxygen to produce O3 and is applicable to various devices. Portable and easy to use, it is perfect for professional DIY projects. Features 1. The ozone generator is made of high quality materials, safe and durable. 2. High concentrations of ozone can be used to remove formaldehyde, disinfect and refresh the air. 3. Using high pressure, use dry air or oxygen in the air to produce O3. 4. Applicable to water purification equipment, air purifier, disinfection cabinet, oxygen bar, dehumidifier, refrigerator, etc. 5. The ozone generator is portable and easy for professional DIY use. Specification: Material: Metal + Plastic Input Voltage: 110V / 220V Output Voltage: 3.5Kv Power: 15W Frequency: 11Khz Ozone output: 500mg/h Weight: about 249g~254g/8.78oz~8.96oz Package Includes: 1 x Ozone Generator