Panasonic Humidifying Air Purifier F-VC70XP nanoeX I am selling this air purifier, which I purchased several years ago and used only a few times, as it has mostly been used as interior decoration. This listing is for the main unit only (no instruction manual). I have never put water in the water tank for humidification, so there is no mold. Please check the photos (photo 4). It has been sitting in this condition, so you may notice some signs of use. I have lightly cleaned it as it had some dust, but please refrain from purchasing if you are overly concerned about this. There are some scratches on the paper filter, as if it has been rubbed. I don't think it will affect its use, but replacement is recommended if you are concerned (photos 7 and 8). Thank you.