Take out the water tank located at the back of the facial steamer. Open the water tank and add distilled or purified water up to the fill line. Do not overfill. Securely seal up the water tank plug and place it back into the steamer. Plug Rivo into a reliable power source away from open water. To use the aromatherapy feature, take out the aromatherapy basket. Remove the cover, and add 3-7 drops of your favorite essential oil (water-soluble), fruit, tea, herbs or a combo, into the basket. Plac.