Febreze Fade Defy PLUG Air Freshener Refill stays true to its name, delivering a first-day fresh that lasts a full 50 days (on low setting). Simply refill the Febreze Fade Defy PLUG and plug it into any outlet in any high-traffic area: kitchen, bathroom or anywhere else odors like to linger. Plug will even rotate if your outlet is upside down. When it's time for a refill, the automatic air freshener will let you know with its handy, low-level indicator light. This scent refill pack comes with four Fade Defy PLUG refills so you can keep that freshness going.