InformationNatio Ultrasonic Essential Oil Diffuser creates an atmosphere of serenity, energy or optimism in your home environment. Featuring gentle, non-heat ultrasonic technology, the Diffuser delivers a continuous stream of your chosen essential oil aroma for up to 4 hours in any room, widely preserving the natural integrity and benefits of your essential oils.How To UseFill with cold water to the maximum waterline and add 3-6 drops of essential oil. Plug in, switch on and enjoy an ultra-fine, aromatic cool mist. Complete instructions are detailed in the user manual enclosed in the box.WarningsAs with all essential oils, do not use internally or consume orally, except for roll-ons which are already diluted. Essential oils are highly concentrated, always follow the directions of use detailed on the product labels. Do not use pure essential oils or essential oil blends undiluted on your skin. Conduct a skin patch test prior to use on skin (mix essential oil with carrier oil or massage oil) for face and body application. Avoid the eye area. Discontinue use if sensitivity occurs. If pregnant or breastfeeding, seek professional advice before using essential oils. Keep out of reach of children and pets. Pets can be more sensitive to Essential Oils than people. Always consult your vet prior to use and follow label instructions. Store essential oils in a cool, dry place, out of sunlight. As with all open flames, handle ceramic candle burner with care. Some citrus essential oils can cause photosensitivity when applied to the skin and the skin is then exposed to UV rays from the sun or other sources. Photosensitivity can create skin irritations like redness, burning, itching, blistering, skin discolouration and inflammation. It is recommended to not expose skin to UV rays for 12 hours following application of photosensitising Lemongrass and Lemon Myrtle essential oils.