Which essential oils should I use in my EVA Little humidifier?

Prefer 100% natural essential oils that do not contain alcohol. Add only 2 or 3 drops of essential oils on a cotton pad that you will place in the drawer provided for this purpose. You should know that the intensity of the perfume is influenced by different factors such as the type of perfume, the temperature, or the size of the room. The perfume will never be as noticeable as an essential oil diffuser.