Nephros, Inc. is a medical device company, which engages in developing and selling liquid purification filters and an on-line mid dilution hemodiafiltration system. The company is headquartered in South Orange, New Jersey and currently employs 31 full-time employees. The company went IPO on 2004-09-21. The firm provides water filtration products and services, along with water-quality education. The company operates through the Water Filtration segment. In the medical markets, it sells water filtration products. In the commercial markets, it manufactures and sells water filters that improve the taste and odor of water and reduce biofilm, bacteria, and scale build-up in downstream equipment. Its products are marketed primarily to the food service, hospitality, convenience store, and health care markets. These commercial products are also marketed into medical markets, as supplemental filtration to its medical filters. The Company’s filters are primarily used in hospitals for the prevention of infection from waterborne pathogens, such as legionella and pseudomonas, and in dialysis centers for the removal of biological contaminants from water and bicarbonate concentrate.