This air purifier generates a maximum of 5mg/h of ozone and can deodorize and disinfect spaces of 1 to 20 tatami mats. - Brand: maxell - Product Name: OZONEO AERO - Power Source: Dedicated AC adapter - Power Consumption: Max. 4.5W - Operating Temperature Range: 0~40℃ - Ozone Generation: Max. 5mg/h - Recommended Installation Area: 1~20 tatami mats - Dimensions: Approx. 120 x 85 x 205mm - Weight: Approx. 1kg Purchased during the COVID-19 pandemic, but it has never been used and is in beautiful condition, having only been opened once. The design is very good. Thank you for looking.