The 'Aro' scented purifier works to comfort users by detecting
emotions and then releasing the appropriate aroma. Aro senses
the mood in the room by detecting words said around it. After
analyzing what has been said, the air purifier releases one of
four aromas that best fits with the situation. As a result,
users can feel their best while using the purifier.
Accompanying the scent is a series of design accents that take
the purifier to a whole new level. The LED color changes
depending on the scent in an effort to further enhance the
emotion-altering features.  Aro works by taking unclean air
through a hole on the side of the gadget and then pushing
processed air through the top. Purified air with an accompanying
aroma is released from the top. The microphone is located on the
side of the purifier as well.