Medical Water Filter segmentation by type distinguishes the underlying filtration technologies and their performance envelopes. Reverse‑osmosis (RO) membranes, characterized by a nominal pore size of 0.0001 µm, dominate the high‑purity segment and capture the majority of revenue (approximately 45 %) because they simultaneously remove dissolved salts, microbes, and endotoxins, meeting the strictest clinical standards. Ultrafiltration (UF) modules, with pore sizes ranging from 0.01 to 0.1 µm, address applications that require protein retention while allowing electrolytes to pass; they account for roughly 25 % of the market, especially in dialysis and laboratory settings. Activated‑carbon block filters, valued for their adsorption capacity against chlorine, chloramines, and organic compounds, contribute about 15 % and are prevalent in point‑of‑use hospital dispensers. Nanofiltration (NF) units, positioned between RO and UF in terms of selectivity, capture multivalent ions and are responsible for near 10 % of sales, primarily in pharmaceutical water‑recovery loops. Finally, mixed‑media cartridges that combine sediment, carbon, and antimicrobial media occupy the remaining 5 %, serving low‑volume bedside applications where cost efficiency outweighs absolute purity.
