margaret
We got the buy one get one
We got the buy one get one. One of the units was bad and it was replaced with the company having it picked up from our home. The unit we were using while waiting for the second ran out pretty quickly. It was in our master bathroom not the main so was surprised how quickly it seemed to stop working. There are 3 batteries and the middle one keeps popping out making the unit unusable. We also noticed the device was wet on the bottom area and it seems the scented bottle leaks from the top as it draws up the liquid. We have tried several times to ensure it is securely in place but still find residue on the bottom of the unit under the bottle. The spray seems to work for helping with odor. Not so sure if the device is up to expectations.