Ozone sterilization, no residual toxic substances. Used to disinfect, sterilize and eliminate various odors in clean rooms for public places, hospitals, factories and mines. Oxygen sterilization and deodorization, high vitality, wide and fast, no dead bacteria. Ozone plate is easy portable and easy to use for professional DIY. Using high pressure, ozone is generated from dry air or oxygen in the air. Specification: Power supply: AC Function: apart from formaldehyde Air volume: 301-400m3/h Style: air purifier Type: ozone generator Noise: less than or equal 40dB Benzene removal rate: 99% Formaldehyde removal rate: 99.90% Application area: 41-60 Installation: USB Wind speed: standard Usage condition: household Color blue Material: ceramic + aluminum Package content: 1 * 7 g/h ozone generator accessories Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.