Diffusers work by using water with oil. It’s best if the water is cold. Each company has different oils and diffusers however most companies let you use other branded oils in their diffusers.
The basics for most diffusers work in the same way though. you lift the shade, add water into the base add your oil into the water, replace the shade and turn it on and enjoy.
It’s always best that if you have questions to reach out to a Scentsy Consultant, Young Living Consultant or Doterra Consultant who knows their diffusers the best.