I have several diffusers around the house, this one is one of my favorites. I have the dark brown and have located it on our kitchen counter, a perfect, small diffuser. With that being said, it has a small reservoir so it’s not going to be a diffuser that will run all day non stop.It has a function that runs for a minute, and then takes a few minutes off and runs again or you can set it for a specific amount of time to run, you can also run it on constant diffusing. It’s very quiet, you’d never even know it’s on. It also distributes a nice stream of mist, the oil fragrance really flow over our space nicely.