A cyclone dust-collecting apparatus includes a body unit, a top portion of which is detachably engaged with a cover unit; a cyclone unit disposed inside the body; and a filter unit detachably disposed above the cyclone unit, wherein air flowing into the body unit is guided from the cyclone unit upward to the filter unit, and is discharged downward via the filter unit. The invention also relates to methods of making the dehydrogenation catalyst composite. An Internet browser within the computer determines which received advertisements are tagged and saves them within the computer.