Item 1. Business We are a commercial-stage company that develops and sells high performance water solutions to the medical and commercial markets. In medical markets, we sell water filtration products. Our medical water filters, mostly classified as ultrafilters, are used primarily by 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. Because our ultrafilters capture contaminants as small as 0.005 microns in size, they minimize exposure to a wide variety of bacteria, viruses, fungi, parasites, and endotoxins. In commercial markets, we manufacture and sell water filters that improve the taste and odor of water and reduce biofilm, bacteria, heavy metals, chemical compounds, scale build-up in downstream equipment, and other various contaminants....