I ordered the Aqua universalis home oil and I use it in an electric diffuser mixed with water. It is the bomb. Literally, as soon as I turn it on, I can INSTANTLY smell the fragrance and it lingers long after I've turned it off. I've used dozens of diffuser oils over the years and none have even come close to this kind of performance. There's no reason for me to buy any other type of diffuser oils from this point forward. Hands down, the best I've ever tried.