Glade PlugIns Scented oil continuously adds fragrance to scent any room no matter the size and are fragrance infused with essential oils. Experience up to 50 days of fragrance per refill when used on low setting. Use only with Glade PlugIns Scented Oil Warmers. Made without phthalates, formaldehyde, nitro musks, artificial colors or dyes. Use as directed and wash hands after handling.