Commonly used mesh sizes include 4x6, 4x8, 6x12, 8x16, 8x30, 12x40 and 20x50.
However, other mesh sizes can be supplied, in either a narrower or broader cut,
whenever they are required for a specific application.
The efficiency of a particular carbon will be influenced by the mesh size, such that
efficiency increases as physical size decreases. However, there may be a limit to
the size used on the grounds of pressure drop restrictions.