A system is provided for treating a space at least partially enclosed by a wall with an aerosolized compound. The system includes a discharge unit, a liquid diffusion appliance, and a conduit extending therebetween. The discharge unit is mounted to a first side of the wall and includes an aerosol outlet in fluid communication with the space to be treated. The liquid diffusion appliance is mounted to a second side of the wall and includes a control system for operating the liquid diffusion appliance to generate and discharge an aerosolized compound from an appliance outlet. The conduit couples the appliance outlet with the discharge unit and defines a passageway through the wall through which the aerosolized compound travels to be discharged into the space to be treated.
