Essential Oil Diffuser, 350ml Aromatherapy Diffusers for Essential Oils, Cool Mist Humidifier with Adjustable Mist Waterless Auto-Off for Home Office Bedroom (Wood Grain) The 350ml water tank, when combined with ultrasonic technology, can cover a very wide area with soothing aroma mist. Simply place this compact, elegant aroma diffuser in your bedroom, living room, or office and enjoy clean, fresh air that will do wonders not only for your body but for your mind. Automatic-Off Safety System Don't worry about leaving Aroma Diffuser on when you're asleep or away from your house, as the diffuser will automatically stop the misting process when the water in-tank reaches a very low level to protect the unit's internals and increase long-term durability. 7-Color Cycling LED Lamp Lighting Turn off the overhead lights and turn on Aroma Diffuser's integrated LED lighting for a soothing show of color. Choose between 7 beautiful colors or let them cycle to create a truly special visual environment. Negative Ionization Ultrasonic technology not only creates a soothing mist, but also negatively charges the mist. This then combines with positive air particles to help take pollution particles and cold/flu germs out of the air for a cleaner environment. Ds a2 tub