Purchased in January 2018 and used until last year. I haven't used it this season. I've only checked that it powers on without water. The exterior shows no noticeable dirt or scratches. The humidifying filter, tray, and tank have been cleaned, but the humidifying filter is noticeably dirty. It will be shipped in the original cardboard box (see image 7). Humidification type: Hybrid (warm air vaporization) Tank capacity: 5L Applicable area (wooden Japanese-style room): 8.5 tatami mats Applicable area (prefabricated Western-style room): 14 tatami mats Installation type: Standalone Other features: Automatic operation / Child lock