IMPORTANT CAUTION: ONLY compatible with diluted oils. Use only alcohol to diluted fragrance oil. DO NOT use water. Must use alcohol-diluted fragrance mix. DO NOT use pure fragrance oil. Compact Design: This plug-in scent air machine has a sleek, cylindrical shape that fits discreetly in small spaces like bedrooms, offices, or bathrooms. Long-Lasting Fragrance: Each 15ml diluted fragrance refill lasts up to 30 days, providing continuous aroma for up to 150 sq. ft. Super-Quiet & Easy to Use: Simply plug it in, and the diffuser works silently without disturbing your work, sleep, or relaxation. No water needed¡ªjust add your favorite diluted oils. Adjustable Intensity: Customize the fragrance strength with the easy-to-use control button, allowing you to create the perfect ambiance for any mood or occasion. Experience a delightful aroma in your living space with this portable scent air machine. Designed for small rooms up to 150 sq. ft., it releases a subtle fragrance for up to 30 days from a 15ml fragrance oil cartridge. This compact diffuser is perfect for bedrooms, offices, or any area where you want to create a pleasant ambiance. Simply plug it in and enjoy the long-lasting scent. Refresh your environment with this convenient and easy-to-use home fragrance diffuser.