A nose stimulator is a device used to stimulate the sense of smell. It works by releasing odors into the air, which are then inhaled by the user. The odors can be anything from pleasant scents to unpleasant smells. The purpose of using a nose stimulator is to help people with smell-related disorders, such as anosmia or hyposmia, to regain their sense of smell. It can also be used to help people with allergies or sinus problems to better identify and avoid triggers.