This dust extractor is designed to capture dust and wood chips from multiple woodworking machines at the same time. It comeswith a powerful 3hp motor, balancedsteel impeller, Ø100mm dust ports (3), upper 1 micron filter cartridges andlower canvas dust collection bags, built-in mobile base. With a filter cartridge rating of 1-micron, the canister filter has a built-in cleaning brush that is easy to operate from the outside. Simply move the convenient top-mounted lever back and forth to remove any dust caked onto the filter, and in seconds you are back to full performance capacity. This unit has three dust ports that allows three100mm lines to be connected simultaneously. The possibility of quick bag replacement and mobility with a built-in wheeled base make our collector very practical. Our CDD22A is exactly correct dust collector for those who need to have really cleaning performance but profitable investment.