The Better Water Filter with Corn-Based Bottle removes chlorine while you drink, just squeeze the bottle. Filter your own water and save, fill with municipal tap water. Fresh-tasting filtered drinking water that goes where you go. Use the filter again and again, refill up to 90 times. Revolutionary new bottle made from corn, Nature Works PLA not from petroleum. 100% renewable resource. Biodegrades in just 80 days in commercial compost systems. Hand Wash Only.