Medical UV Sterilizer segmentation by type classifies the technology formats that translate UV‑C energy into sterilization outcomes. Fixed‑installation cabinets, often built into sterile processing departments, dominate the segment with a share of roughly 40 % of unit sales, owing to their high throughput and validated cycle control. Mobile UV‑C units, mounted on carts or trolleys, contribute about 25 % as they provide flexibility for on‑demand decontamination of bedside equipment and isolation rooms. Handheld UV devices, representing 15 %, are adopted for rapid surface disinfection of portable tools and high‑touch points, though their efficacy is limited by exposure time. UV‑C air purification systems, accounting for 12 %, are installed in HVAC ducts or ceiling fixtures to continuously inactivate airborne microbes, a growing priority after recent pandemic pressures. Finally, UV‑C water sterilizers, at 8 %, serve dialysis machines and surgical irrigation lines where liquid sterility is critical. Each type aligns with specific workflow constraints and capital budgets, collectively defining the market taxonomy and influencing total market volume through differentiated pricing and replacement cycles.