A vented door for a computer system includes a vented base and an outer door. The vented base and the outer door are separately pivotable. The vented base is pivotably attached to the computer system's enclosure for movement between a closed configuration where the vented base abuts against a panel of the enclosure and an open configuration where the vented base is swung away from the panel. The outer door is pivotably attached to the vented base to avoid interfering with a neighboring computer system's vented door as the vented base is pivoted to the open configuration. An acoustic noise reduction lining is provided on the outer door and in the air flow apertures of the vented base. The outer door is preferably removable from the vented base so that the combined weight of the vented base and the outer door need not be lifted when removal is necessary.