Initial views documented loose dust and scattered debris on accessible flexible-duct and ductboard surfaces, along with older discoloration and adhered marks. We connected vacuum-truck collection at the Goodman air-handler plenum, masked supply openings to direct airflow and help contain dust, mechanically agitated accessible supply branches with micro whips, and cleaned removed covers before reinstallation. Negative suction drew dislodged material toward exterior collection while helping keep it from spreading into occupied areas. After photographs show substantially less loose material on accessible branches and plenum surfaces; persistent staining and adhered marks remain visible. Separate roof-access photographs document dense lint beneath the dryer-vent termination mesh, but no distinct final dryer-vent after view was captured, so this showcase does not claim a verified final condition for that outlet.