Xiaomi Petoneer Cold Cathode UV Sterilization Pen 253.7nm Water Purifier Pen Rechargable Destroys Bacteria Health ProtectionDiscover the power of the Xiaomi Petoneer Cold Cathode UV Sterilization Pen 253. 7nm Water Purifier Pen Rechargeable Destroys Bacteria Health Protection, a revolutionary device designed to ensure your drinking water is safe and free from harmful contaminants. This compact, handheld UV water purifier uses advanced cold cathode ultraviolet technology to effectively destroy over 99. 9% of bacteria, viruses, and protozoa, including Giardia and