The Dirt Devil 990 central vacuum power unit uses Cyclonic Filtration Technology (CFT), a dual-stage process that combines cyclonic separation for primary filtration with a replaceable pleated filter for secondary filtration. Because cyclonic separation handles the bulk of the dirt load, the pleated filter maintains consistent performance longer than single-stage cloth-filter designs.

Designed for homes up to 8,000 square feet. The 6-gallon dirt canister extends cleaning sessions before emptying is needed. On-board canister inlet valve sustains cyclonic performance. Performance specs: 141-inch sealed water lift, 124 max CFM, 575 max air watts, 62.8 dBA. Contact Carmen's Vacuum for installation kit options.