Types classification distinguishes hardware architectures and filtration mechanisms, shaping the overall market size through technology adoption curves. Hemodialysis systems, employing semi‑permeable membranes for diffusive solute transport, dominate with the highest installed base, driven by mature reimbursement pathways. Hemofiltration devices, which rely on convective clearance, capture a smaller but expanding niche, particularly in AKI settings where larger pore sizes improve middle‑molecule removal. Hemodiafiltration combines diffusion and convection, offering superior clearance efficiency; its market share is rising in high‑income regions as clinicians seek hybrid solutions. Adsorptive platforms, utilizing sorbent cartridges for toxin binding, occupy a modest segment but are gaining traction in sepsis and liver failure applications due to targeted cytokine removal. Finally, Plasma‑exchange units, which separate plasma from cellular components, serve specific immunological disorders. This market taxonomy underscores how each type contributes to total sales, with diffusion‑based systems providing the bulk of revenue while emerging adsorptive technologies represent high‑growth opportunities.