WISPI and Essential Oils Bundle

I'm reviewing the WISPI with essential oils after I've had it for a while. Pro(s): It's a humidifier. It's got a nightlight that you can adjust the colors. You can adjust the humidifier settings as well. It's got a pad compartment to put the pad and essential oils. Con(s): Mold build up in the ears of the wispi, which can make it difficult for cleaning. I found a wet Q-tip that can be helpful in the process of cleaning the ears. Mold can form in the sealed part of the tank. There's a sealed part in the tank, and when I clean it, the mold won't come out.