Installation: Rotate warmer's electrical plug, if needed. Unscrew cap and insert fragrance bottle into warmer. Insert warmer upright into outlet. Operation: please read the important safety instructions. Adjust warmer intensity to desired setting. Moving/storage: if warmer is removed from outlet, separate bottle from unit and store in an upright position. Do not place fragrance oil bottle or cap on painted, finished or plastic surfaces. User maintenance: fragrance oils may collect on warmer. To clean, remove warmer from electrical outlet and wipe with dry cloth. Wash hands after handling. Use only GladeÂ® PluginsÂ® scented oil refills with GladeÂ® PluginsÂ® scented oil warmers.