Some care to your Reeds:-
Some reeds gets moist faster than the others in certain conditions.
It really all depends on your house environment and works different at different conditions.
If your reeds are moist and stop emitting the scent,
place the reeds under the sun for about half an hour to dry it, when the reeds has riden the moist, it will start diffusing the scent when it is able to absorb the oil again.
Difference fragrances of Eternal Passion Reed Diffusers here
Eternal Passion 