How does the Dust Deputy 2.5 get more airflow than smaller cyclones?

The Dust Deputy 2.5 Cyclone has a larger diameter inlet and outlet to increase flow, and a larger overall size to reduce friction relative to the volume of air passing through. Less friction means less pressure drop and increased flow. Put another way, assuming equal pressure, a lot more water will pass through a 3/4” hose than a 1/2" hose – simply because there’s more room for the water to pass through. The larger dimensions of the Dust Deputy 2.5 have a similar effect on airflow.