The Motion Relaxer ™ scent machine is a computer-controlled device that uses compressed air to project different scents on cue for a predetermined time and distance. It features the unique ability to intersperse bursts of unscented air in between smells to clear for the next scent, thus eliminating cross bleed/mixing problems common to other systems. The system's software can precisely time one of the many scents available to release on time to digital media.