We have installed the newest dust collection system that is available. Specifically speaking, we use the CAV-26 dust collection system. On good weather days the unit will sit outside of your home and a long hose will remove 99% of the dust generated from the machines used in the sanding process. The airborne dust is almost non-existent. While no system has been produced that will be 100% effective, we are always striving to satisfy you as far as the lack of dust in your home is concerned!