Aromatherapy, Herbal Steamer, and Ozone: comes with herbal basket for fresh or dried herbs in a satchel or a few drops of oil or scent on a gauze pad. Steam passes through the basket rising through the nozzle aromatherapy during treatment. Included is an ozone function that sterilizes the steam ensuring a clean, sterile treatment. Unit is height adjustable with a 180 degree nozzle swivel. Automatic low-water shut-off. Includes BPA Free Plastic Jar with handle. Use Tap Water Only!