I love pleasant smells, and I want them to surround me at home. These refills were a very successful acquisition. Firstly, they can be used for their intended purpose - inserted into the diffuser (and can be inserted into a conventional fumigator), first dropping a few drops of the desired oil on the plate. Secondly, you can simply lay the plates with butter on the chests and drawers of the chest. It's very nice to open the locker and smell that you love. The plates can be used many times, if you drip on them the same essential oil, when the smell begins to erode.