The AquaMist is the perfect personal size oil diffuser. Its sleek design features a 360 degree misting nozzle for full directional control. The AquaMists ultrasonic action gives instant aromatherapy diffusion and the negative ions created help to purify the air. It is virtually silent lending it to be used anywhere * in a home office, work cubicle, hotel room or home spa area. With the AquaMist, YOU control the output settings. With a built-in night light setting and the 1 Hour or 2 Hour diffusion settings, there are a myriad of options for both home and work. The AquaMist has a compact 150 ml water tank but can cover up to a 400 sq. ft. area. It has a total diffuse time of up to 4 hours. It is also BPA free. Why Should You Diffuse? Essential Oils have been shown to have a variety of effects throughout our lives. Diffusing Essential Oils gives you a way to delivery those oils into your system. Whether it is increasing relaxation, decreasing stress, or increasing focus * using the AquaMist to deliver those benefits while it also helps ionize the air is a great choice!