Ozone sterilization, no residual toxic substances.It is used for disinfection, sterilization and elimination of various odors in clean rooms of public places, hospitals, factories and mines.Oxygen sterilization and deodorization, high vitality, wide and fast, no dead bacteria.The ozone board is easy to carry and easy to use for DIY.Using high pressure, ozone is generated from dry or oxygen in the .specification: supply: ACFunction: In addition to formaldehyde volume: 301-400m3/hStyle: PurifierType: ozone generatorNoise: less than or equal to 40dBBenzene removal rate: 99%Formaldehyde removal rate: 9990%Application area: 41-60Installation: USBWind speed: standardUsage conditions: householdcolour: blueMaterial: ceramic + aluminumPackage Contents: 1 * 7g/h ozone generator accessoriesOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.