Infused with natural essential oils, Yankee Candle Home Fragrance Oil is the purest, most concentrated form of Yankee Candle fragrance. Use in a fragrance oil warmer to scent a room in just minutes. Recommended for use with Yankee Candle Ultrasonic Aroma Diffuser.100% recyclable in partnership withTerraCycle. Add just the amount of fragrance: 5 to 7 drops to diffuser. For use with Yankee Candle Ultrasonic Aroma Diffuser. Create just the right mood with this fragrance oil. The sensuous feel of a soft cashmere in a scent thats both creamy and luxurious.