Corona Dehumidifier

Purchased between 2018 and 2019. It may have been tested once or twice, but I have several units at home and used those, so this one was essentially unused after purchase, with no signs of wear and in beautiful condition.
The filter is also clean, and there are no issues with the operation check.
There is no instruction manual, but it can likely be found online.
There may be minor dirt or small scratches from storage, but they are barely noticeable unless you look very closely, so they should not be a concern during normal use.
The number 1 is written in marker on the tank as shown in the image. Please be aware of this.