Neonatal ICU ventilators are deployed across distinct clinical applications that together shape the market’s revenue profile. The dominant application is preterm infant care, encompassing infants born before 37 weeks gestation who frequently exhibit immature lung mechanics and require precise, low‑volume ventilation. This segment accounts for roughly 55 % of total sales, driven by high birth‑rate regions and expanding neonatal intensive care capacity. The second tier, term infant care, includes full‑term newborns with conditions such as respiratory distress syndrome or meconium aspiration; it contributes about 30 % of the market, reflecting broader adoption in established NICUs. A smaller yet strategically important niche is surgical neonatal care, where ventilators support infants undergoing corrective cardiac or abdominal procedures; it represents approximately 15 % of revenue. Collectively, these applications define the Neonatal ICU Ventilators segmentation, with each tier influencing product development priorities, pricing strategies, and regional demand patterns. These usage patterns also affect aftermarket service volumes and the allocation of R&D resources toward infant‑specific safety features.