Starter kit includes Febreze Fade Defy PLUG and (2) scented oil refills Fade Defy Technology delivers a first-day freshness that lasts 50 days (on low) Enjoy the cozy, just-out-of-the-dryer scent of Downy April Fresh Low-level indicator light tells you when it’s time to refill Continuous, automatic air freshener with digitally controlled scent release