2 Great Scents Here’s a fresh idea - an electric air freshener that alternates between two complementary scents, keeping your home noticeably fresh for 30 days. Febreze® NOTICEbles® is a convenient and inventive way to permanently eliminate underlying odors such as mustiness and pet smells, while releasing waves of warm, subtle fragrance. The alternating oils keep your nose on its toes, ensuring noticeable freshness, all month long. Just plug it in and enjoy the air! Vanilla Starlight Moonlight Vanilla. Innovative warmer alternates between two complementary scents, so you re sure to notice them all month long.