The mfg. of the lubricator has no idea how you will use it. It depends on the air tool you are using and the requirements of the tool. You could be using air cylinders to very large impact wrenches.
By the way once you use a air hose or line with a lubricator everything becomes coated with a oil film. You can't spray paint with it or inflate tires. Use one length of hose just for air tools and the lubricator.