Vases are used to hold water. If left unattended, the water can become cloudy, mold can grow, and the appearance can become dirty. To prevent such a situation from occurring, regularly change the water and wipe the vase to keep it clean. When washing, please use neutral dish detergent. It is generally advisable to choose a vase that has a smooth surface inside, making it convenient and easy to clean. Also, the less decoration on the surface, the easier it will be to wash.