Sentry Calming Diffuser Refill for Dogs

Refill ONLY Pheromone technology is proven to modify stress behavior such as: inappropriate marking, excessive barking and chewing.? Lasts up to 30 days.? Sentry calming diffuser for dogs helps with the following stressful situations: Separation anxiety, thunderstorms, fireworks, noise fears, visitors, holiday stress, new baby or new pet. The lavender and chamomile provide a soothing fragrance.