Capacity is a problem in every dust collection system, but particularly in small shop systems. A cyclone lid will let you sidetrack up to 99% of jointer/planer shavings and lesser amounts of fine dust (such as from sanding) to a barrel or trashcan. It lets you convert a standard shop vacuum into a high-capacity dust collector. In fact, if your shop vacuum draws 6 amps or more, you can use it with our dust collection network to power a complete collection system. If you have a lower-powered vacuum (less than 6 amps), you can still use it with the cyclone on a single machine, such as a planer.