Marcus Chen

Marcus Chen is a water quality engineer with over 12 years of experience in residential and municipal water treatment systems. He holds a B.S. in Environmental Engineering and has spent his career evaluating filtration technologies, conducting contaminant assessments, and advising on water safety standards. His hands-on work spans both laboratory analysis and real-world system installations across North America. At DrinkingWaterFilter.com, Marcus breaks down complex water science into clear, practical advice — from decoding NSF/ANSI certifications to matching the right filtration system to your water supply. His reviews and recommendations are driven by technical knowledge and independent testing experience. At DrinkingWaterFilter.com, Marcus breaks down complex water science into clear, practical advice — from decoding NSF/ANSI certifications to matching the right filtration system to your water supply. His reviews and recommendations are driven by technical knowledge and independent testing experience.