The ideal system for your critical applications requiring 18.2 megohm water with less than 2 ppb Total Organic Carbon. The water produced is perfect for applications requiring low organics including; High Performance Liquid Chromatography (HPLC, Ion Chromatography (IC, Gas Chromatography/ Mass Spec. (GC/MS and TOC Determinations. A dual wavelength UV lamp oxidizes organics down to virtually undetectable levels and also maintains minimal bacterial levels within the system. The system alerts you when it is time to change the UV Lamp.