Revolutionary On-The-Go Wellness – 5000 PPB in Just 8 Minutes: Generate up to 5000 PPB of hydrogen in just 8 minutes. Efficiently separates hydrogen and oxygen gases, with a breathable vent to release oxygen, residual chlorine, and other unwanted gases. Enjoy alkaline water enriched with hydrogen ions anytime, anywhere.

New - open box.  It's a nice bottle for hydrogen.