SecureDog Home 30-Day Refill is a passive diffuser refill that releases Dog Appeasing Pheromone (DAP) to support a calm indoor environment for dogs. Ideal for periods of adoption, a new environment, visitors, socialization, or unusual noises, it helps support overall well-being at home. Each refill includes 8 biodegradable diffuser sticks and a bottle of DAP solution for up to 4 weeks of continuous diffusion in spaces up to 645 sq. ft. Designed for use with the tip-resistant glass vase from the Starter Kit, it is suitable for all breeds and ages with no side effects or drowsiness. A simple, low-maintenance dog calming aid that supports a harmonious living space and gentle dog enrichment.