Thank you for looking. I purchased this by mistake due to the wrong model number. It is unused. This is a new, unused item, but please refrain from purchasing if you are sensitive. A pitcher-type water purifier that uses a hollow fiber membrane filter to remove bacteria and chlorine. - Model Name: CP405 - Brand: Cleansui - Function: Water purification - Filter Type: Hollow fiber membrane filter - Removable substances: Bacteria, chlorine, turbidity, etc. - Design features: Transparent body, compact shape