If Persian and Oriental rugs have survived centuries in comparatively good conditions, it is because of careful treatment. They give remarkably long service if treated with proper consideration. The main two enemies, apart from the inevitable destructive effect of wear, are moths and dampness. The former are best controlled by frequent moving or handling and by regular exposure to light and air. Places in the middle of the carpet that are locally worn or damaged can be restored to make the rug almost as good as new.