Not all diffusers are created equal! The Diffusers I use are medically grade plastic which mean you are able to diffuse citrus oils without them leaking toxic plastic particles into the air. Don’t be fooled by any brand diffuser, do your research, and get the best for your family. Diffusing is using the Essential Oils Aromatically, which is one of the three ways to use Essential Oils. Research shows that the pure constituents in therapeutic grade essential oils stimulate olfactory receptors and activate regions in the brain’s limbic system associated with memory, emotion, and consciousness. Simply inhaling a certain oil can ease the daily stressors and occasional emotional ups and downs. How cool is that?!