Feliway Diffuser & Refill offers cat owners a drug and surgery free alternative for treating stress-related behavioural problems that can otherwise become a costly and emotionally draining issue for owners and their pets. Feliway spray is a synthetic copy of feline facial pheromones, which scientific trials have proven as an effective control for a range of behaviour disorders displayed by cats, such as urine spraying. The pheromone is usually released by your cat when he or she feels happy or content and is also used to mark territory. When used correctly feliway can help to reduce your cats stress levels and combat marking behaviours like scratching or urine spraying. The diffuser is designed to be left on continuously and will cover a space of 50-70m2. Avoid placing the diffuser behind furniture, doors or curtains or underneath shelves as this can make it less effective. Each diffuser refill will last for 30 days. Ingredients: F3 fraction of feline facial pheromone analogue 2%.