Operation confirmed. It works without any problems. There are no manuals, only the main unit. You can view them on the manufacturer's website. [Product Condition] There are some noticeable scratches and stains, but all functions have been confirmed to be working. The filters were replaced with new ones in the summer, but I ended up only using it a few times, so I'm selling it. Since they are consumables, please replace them if you are concerned. I had already purchased additional filters, so I will include them. Top Highlights Brand: Sharp (SHARP) Floor area: 34 square meters Color: White Features: PM2.5 compatible, Humidification function Capacity: 2 liters Tank volume: 2 liters Air purification applicable floor area: Approximately 19 to 21 tatami mats Dehumidification capacity: Approximately 5.0L/day Humidification capacity: 400mL/h Humidification method: Vaporization method Dehumidification method: Compressor method Release year: 2020 Dehumidification applicable floor area: Concrete house ~13 tatami mats/14 tatami mats (21m²/23m²)/Wooden house ~6 tatami mats/7 tatami mats (10m²/11m²) This is a used item, so please refrain from purchasing if you are sensitive to such things.