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.
