The Brita Bottle Blue Water Purifier (Brita 35558) is used to purify tap water wherever it is needed. The Brita Bottle filter element included with this Brita Bottle Water Filtration System eliminates the need to buy costly bottled water by allowing you to purify tap water on the go or at home school work or anywhere else it is needed. This Brita Blue bottle water filter system primarily reduces the bad taste and odor of chlorine though it will also reduce other standard impurities and particulates such as sediment dirt sand silt rust limescale and more. This Brita bottle holds approximately 24 ounces. Each Brita bottle filter insert will last for about 150 bottle refills. The dimensions of this Brita bottle are approximately 9.75 height x 4.5 length x 3 wide. This Brita bottle water purification system is also known by Brita part number 35558. It is BPA free and the filter element is NSF Certified to reduce the specified impurities.