This is a used item that was used at home. Operation has been confirmed. Product Description: Body size (width x height x depth) mm: 270 x 700 x 270 Body weight: 9.5kg Applicable floor area: 25 tatami mats Estimated cleaning time: 11 minutes for cleaning 8 tatami mats Maximum humidification volume: 500ml/hour Maximum humidification applicable area: Up to 14 tatami mats Water tank capacity: Approximately 2.7L Ion: Active Plasma Ion Timer: None Automatic operation: Yes PM2.5対応 (PM2.5 compatible) Filter life: 10 years, no replacement needed (dust collection filter/humidification filter) Operating noise: 19-53dB (during air purification operation) Power consumption: 6-56W (during air purification operation) If you have any questions, I will do my best to answer them, so please comment. Thank you.