An olfactory special effects system includes a plurality of scent
cartridges that contain respective substances for generating different
scents. The system also includes a scent delivery unit having a plurality
of compartments to contain the scent cartridges, a device that generates
an airflow, and a mechanism that moves the scent cartridges from the
compartments into the airflow to create a scented airflow. The scent
delivery unit also includes a controller that controls the mechanism to
move different scent cartridges at different times during the presentation
in order to release different scents in response to cues from the
presentation. The olfactory special effects system also includes a scent
outlet vent to deliver the scented airflow to the audience members. The
system further includes a scent ductwork to channel the scented airflow
from the scent delivery unit to the scent outlet vent.
