ThunderEase® for Dogs heated diffuser and refill provide calming pheromones continually for up to 30 days in a 700 square foot area. Is your dog generally nervous? Do they hate to be home alone, and suffer from separation stress? Do they bark endlessly when a delivery driver comes by, or someone rings the doorbell? ThunderEase® could help your dog to feel much calmer, all day long! ThunderEase® mimics the calming pheromone that a mother dog emits while nursing her puppies, which helps your dog to feel calmer and more comfortable in stressful situations! Helps reduce common stress related behaviors like destructive chewing, trembling, panting and barking*. ThunderEase® uses the Adaptil formula, which is the #1 Vet Recommended Solution to help dogs adjust to challenging situations and curb unwanted stress related behaviors. Great for reducing: Separation stress General fearfulness Fear of loud noises Uneasiness in a new environment Destructive chewing Travel / Vet stress