Continuously fights odours and alternates between 3 complementary scents for noticeable freshness Lasts up to 90 days (if used 12h per day at low setting) Smart Programming: Digitaly controlled scent alternation with a fresh scent that travels further 3Volution with Odourclear Technology continuously fights odours, leaving a light fresh scent 3Volution alternates the complementary scents every 45 minutes so you keep noticing the freshness
