No candle, no water, no mess.
Just place 5-6 drops of your favourite Essential Oil or Fragrant Oil onto the porous dome and it will slowly diffuse into the room.
If you have trouble sleeping, apply 2-3 drops of Lavender Pure Essential Oil to the tip of the dome
In the morning, add 5 drops of Pink Grapefruit or Lemon Myrtle, a great way to start the day
For studying, try Basil, Thyme or Rosemary to improve focus
A perfectly safe substitute for an Oil Burner in a child's bedroom.