Feliway 2 Pack (150mL) Spray Feliway (Comfort Zone) spray and diffusers prevent cats from urinating where they shouldn't. This fantastic new pheromone Feliway spray or diffuser duplicates the smell of a cat's natural scent glands. Cats will not soil anything close to where Feliway has been sprayed. New 75 mL bottle for same price! Feliway spray can help stop cat spraying. Both male and female cats, because of hormonal and behavior problems, can start spraying urine on objects or areas.