Febreze NOTICEables Glistening Alpine Scented Oil Refills: * Eliminates tough odors * Alternating oils * Freshens air for 30 days * Releases Glistening Alpine and Apple Spice scents * Designed to be used with Febreze NOTICEables Dual Scented Oils Warmer * Simply plug in a warmer for freshness * Scents in refills are designed to be complementary