A ventilation device includes an impeller rotatable to move air from an air inlet end to an air outlet end of the impeller. An accumulated result set of identifiers is generated wherein each identifier within the set of identifiers facilitates access to a corresponding unit of information in a data store, and wherein the corresponding unit of information comprises the at least one search term. In response to sensing the presence or absence of an alignment target at the selected locations, the controller directs the micro-machining device to remove additional portions of the opaque layer. The trim panel assembly further comprises a door moveable between a first position wherein the door closes the opening to a second position wherein the door provides access to the opening.