Comfort Zone with Adaptil Diffuser dispenses a drug-free, odorless vapor that mimics a dog’s natural calming pheromones. This vapor signals to your dog that the area is friendly and safe, helping reduce your dog’s unwanted behavior, such as whining, house soiling, destructive chewing, or excessive indoor barking, often caused by stress or fear. Comfort Zone products with Adaptil are clinically proven to help control these behaviors so you can live in harmony with your dog again.