Aroma Mister ULTRASONIC Oil DIFFUSER utilizes high frequency ultrasonic electrical vibrations to disperse the water and essential oil out of the top vent into a fine spray. It has a 120 ml water tank runs up to 4 hours and has rotating LED lights that change into 4 colors purple, green, red, and blue automatically. It covers 250 Sq. Ft. Add 5 drops of Essential Oil.

"BPA FREE" (Plastic)