Patent ID: 8265466

Claim:
A combination aroma diffuser, comprising: a lower housing that admits light, said lower housing having a bottom wall and an upright peripheral wall; a control unit, said control unit comprising a control circuit board and a control button set operable by a person to control functioning of said control circuit board; a display screen mounted inside said lower housing and electrically connected to said control circuit board, said display screen having a light-emitting display side that faces the upright peripheral wall of said lower housing toward the outside for displaying digits by means of emitting light for viewing by a person; an upper housing that admits light, said upper housing being supported on the topmost edge of said lower housing; a light-emitting heating unit mounted inside said upper housing and electrically connected to said control circuit board and controllable by said control circuit board to emit light and to generate heat when emitting light; and a cover member covered on a top side of said upper housing, said cover member having a fluid chamber defined therein for holding an aromatic substance heatable into vapor by heat generated by said light-emitting heating unit and at least one air vent located on a top side thereof for guiding vapor out of said fluid chamber to the outside open air.