The COSSCCI diffuser will hold 530 ml of water and will run up to 10 hours depending on if it is in the low or high mode. You have a choice of setting the diffuser on 1 hour, 2 hours, 3 hours or ON continuous until the water runs out. I like to add essential oil to the diffuser to have a nice fragrance throughout my house. The light can rotate colors or stay on a specific color, your choice. It is really neat that this diffuser can be ran by a remote control so that I can change the color or mist mode without even getting out of my chair.
This diffuser is perfect to use as a night light or to add color to any room during the day. When you have the light turned on, the color will shine through the clear white section; when the light is turned off, the diffuser still adds a nice decor touch since the bottom is a woodgrain color.