Our popular and colorful 100mL Ultrasonics Aromatherapy Essential Oil Diffuser is now on sale. About the size and shape of a water glass, this attractive unit looks good everywhere around home and office. It fills the air with pleasing therapeutic aromaSoothing and calming. Advanced ultrasonics diffuse plant-based essential oils and tap water in a steady swirling mist (2 modes). 100ml tank delivers hours of continuous operation, even longer in intermittent mode. Use without essential oils to humidify nearby airWhisper quiet operation and compact size. About the size of a water glass, the nearly silent diffuser produces a gentle hum but neither heat nor vibration. Sets up in minutes, produces mist instantly. Place one near the bed, desk, nursery, kitchen and bath. Use at work, on salon workstations and in massage roomsRelaxing, therapeutic multi-mode mood-enhancing LED light illuminates nearly the main tank cover, smoothly fading through 7 colors in a 1 minute cycle. Set to any fixed color as a night light; or turn off the light (continues to diffuse mist)Safe and easy to use. Small switching power adapter features a six-foot cable (1.82m) to allow placement anywhere (TIP: Insert the power plug into the bottom of the unit before filling the tank to avoid spills). The diffuser has automatic shut-off when water empties, and a flashing LED when it's time to refill. Fills easily using tap, filtered or distilled water with included measuring cup. Filters and maintenance are not required (TIP: To avoid bacteria, empty and dry the tank when not in use).