Oniusa's water-soluble essences are scented room essences designed for use with ultrasonic diffusers, essence burners, or added to radiator water. The water-soluble scented fragrances dissolve in water, transforming into pleasant olfactory notes and creating delightful scented atmospheres. The containers are equipped with a dropper pump that allows you to adjust the intensity of the perfume you want to diffuse in the environment.