Purification has never been easier! The UV sterilization self-cleaning water bottle keeps your water pure and odorless. Portable purification system is built into your water bottle. The mercury-free UV bulb produces a 99.99% sterilization of the bottle and water to effectively neutralize microbiological contaminants. LCD screen verifies success. Treats 45 cycles with each charge. Durable, double-wall stainless steel vacuum construction with copper insulation, which allows your beverage to stay cold for 48 hours and hot for at least 12 hours. Features on-trend, durable powder coating. Screw-on, spill resistant lid. Fits most standard car cup holders. 18oz.