Activeaire Automatic In-Stall Freshener Dispenser - BlackAutomatic In Stall Odor Neutralizing Air Freshener. The ActiveAire Automated In Stall Freshener Dispenser automatically combats odor at the source to enhance the restroom experience. This state of the art odor management system uses motion sensing technology to neutralize odor by releasing a burst of freshness upon entering and leaving the stall. It's on demand feature can be activated with the wave of a hand if a visitor needs an extra burst of