This product has worked well for me in the past but not with my current puppy. Also, I think the diffuser I got is defective because not only could I smell this when plugged in, it smelled like burning plastic and made me physically ill. Again, not sure if this was the diffuser, the refill, or me.
I used the collar with much better results, to be honest.Get more detail about Farnam Comfort Zone DAP for Dogs Refill, 48ML.
