Large filter paper" strongly deodorizes unpleasant smells. The filter paper can be pulled up, so the deodorizing/aromaizing effect can be adjusted in three levels. The large 400mL capacity ensures long-lasting effectiveness. The fragrance lasts until the liquid runs out. Comes with a cap that hides the filter paper. Lasts about 1.5 to 3 months. (The duration of the fragrance depends on the height of the filter paper and the environment in which it is used.) A refreshing citrus fragrance that expresses the freshness of growth under the sun's rays.