Upright Showcase has the advantages and disadvantages of having a door or no door. There are doors that can be dust-proof, do not collect dust, do not need too much cleaning, no door to take, but also consider the decoration and display function, cabinet without door Basically, it is mainly for the display of functions, such as the collection of hand-made works, cultural relics, books, etc. Naturally, the long-term cleaning is a problem, unless the new wind system is installed for a long time without opening the window, the door cabinet is mainly storage, if In the case of a bookcase, I can think about using a glass door. This also has a function of display. It is only a little inconvenient when I take it, but it prevents the ash.