Adaptil DAP (Dog Appeasing Phermone) Diffuser Refill (48 ml) Good Product High Quality And Quick Shipment for USA. Adaptil DAP (Dog Appeasing Phermone) Diffuser Refill (48 ml) How to best use Adaptil will depend on the situation your dog is faced with and/or the behaviour they are exhibiting.?Adaptil can?&#x2022;Help comfort dogs during car travel.Help promote learning during training classes. Help adults and puppies settle in new homes.Help reduce stress-related behaviours in response to challenging situations such as fireworks, Christmas or a new baby. The Adaptil Diffuseris a discrete plug-in which bathes the home in a synthetic copy of the 'canine appeasing pheromone', a natural product proven to comfort both puppies and adult dogs. Releasing the comforting pheromones into the local enivonment.The diffuser covers an area of 50-70m with each vial lasting up to 4 weeks. The diffuser should be plugged into the room where the dog spends most of its time.