Help your furry friend feel more relaxed with the Comfort Zone New Formula Calming Cat Diffuser Refill. It fills the air of your home with natural pheromones to calm your kitty and deter unwanted behavior like destructive scratching and urine spraying. The drug-free vapor that emits from the diffusers creates a calming environment for your paw-tner to help her feel more comfortable and safer. Suitable for all life stages, Comfort Zone New Formula Calming Cat Diffuser Refill is ideal for any stressful situation such as adopting a new pet, moving to a new home or even when rearranging your furniture