Atomiser himalayan salt flame effect night light himalayan aroma diffuser creates a burning flame effect from combination of light and fog to fragrance your room or office. just add some water and a favourite essential oil for an instant aroma experience. it uses ultrasonic waves to instantly vaporise the water and essential oil in the tank to create a cool dry fragrant mist. salt chunks are included. tank capacity: 220 ml powered by usb (length of the cord 100 cm) timer: 1-3-6 h dimensions: height 12 cm, diameter 10 cm to be used with essential oils mixed in water only!