Abstract: An air treatment substance delivery apparatus includes a pressurized aerosol can of air treatment substance such as a fragrance or sanitizer with a spray nozzle mounted on a conventional nozzle displacement valve, a nozzle depression mechanism actuated by a solenoid, an electric power circuit delivering power from the power source to the solenoid, the power circuit including a spray activation switch connected to air movement detection means so that activation of the air unit fan is detected by the air movement detection means which operates the spray activation switch to activate the solenoid which causes the nozzle depression mechanism to depress the spray nozzle on the can and release atomized air treatment substance into the air stream.

Abstract: A laser mounting assembly for mounting a laser tool to a mounting surface such as a wall to adjacent to an end of a mounted first molding segment and orienting the laser tool to project a beam of light from a point aligned with a longitudinal edge of the first molding segment along the mounting surface to locate and permit marking of the position of a second molding segment longitudinal edge includes a laser tool distal end for mounting to a support surface and having a laser tool proximal end. The laser mounting assembly includes a mounting plate for securing to a mounting surface; and includes a backing panel for fastening to the laser tool distal end, such as with adhesive, the backing panel having a direction indicator along the panel periphery which extends laterally to an extent that it is visible to an observer at the laser tool proximal end. A method of assembly use is also provided.