Hi: I am looking for a formula for lamp diffuser oils. Thought there was one posted in a thread some time back, but I cannot find it. It was a formula using 90% isoprophyl alcohol and fragrance oil (or maybe essential oil). Hope that someone can help me. I received a lamp for Mother's Day and have lots of candle fragrance oils that can be used, if I can find the formula. Thanks for any info. Cheryl