Atomiser aarhus - classic pod usb colour change timer aarhus atomiser is one classic aroma diffuser such diffusers are timeless and elegant, they provide a flameless and smoke-free way to fragrance your room or office. how to use: just add some water and a favourite essential or fragrance oil for an instant aroma experience. - tank capacity 300ml - led light - 7pcs - powered bu usb ( length of the cord 100cm) - auto power off when water runs out - timer 3-6h