The LARQ bottle is a reusable, rechargeable, insulated water bottle that cleans itself and the water you put inside it. Using proprietary UV-C Led technology, LARQ neutralizes up to 99.9999% of harmful, odor-causing germs using 280nm UV-C light. The LARQ bottle intelligently turns on every 2 hours, basking the water and inner surface of the bottle to keep it stink-free. Double-insulated construction keeps your water cold for 24 hours, hot for 12 hours. No replacement filters or batteries needed.