● Disinfects humidifier tanks and eliminates odors using the power of iodine. ● Simply add to the water tank to control the growth of bacteria and maintain clean steam. ● It can be left in the tank, reducing the hassle of cleaning. I am selling this because I am replacing my humidifier. The box has some dirt and scratches, but the item is unused. The box will be folded for packaging. Please understand. Please consider purchasing if you understand that this item has been stored at home.