Review on DEERMA 5L Top Fill Ultrasonic Cool Mist Air Humidifiers with Essential Oil Diffuser, Ideal for Home Baby Large Room Bedroom Office, Night Light, Auto Shut Off, Adjustable Mist Volume by Maria Smith

I have used it 3 times in 6 months (left it empty when not used for a long time) and the aroma button is broken. It looks like it got stuck somehow and now it won't come out. With infrequent use, you will still notice a distinct musty smell. I use Portland tap water OR so I know it's not water. After disassembling the internal mechanisms, I noticed mold. It's not worth it! I'll contact you.