Argonide Corporation’s CoolBlue® Water Purifier System, already certified for biological removal, has passed WQA’s lead reduction test up to 1,000 gallons. The system was tested according to NSF/ANSI 42 and NSF/ANSI 53 for the reduction of lead and class I particulate (≥ 0.5µm to < 1µm) and achieved actual reduction of 99.3 percent and 99.9 percent, respectively.