In Pulmonary Surfactant segmentation by application, the market is divided into two primary categories: Neonatal Care and Adult Respiratory Distress Syndrome (ARDS). Neonatal Care constitutes the largest segment, driven by the high prevalence of preterm births and associated respiratory distress syndrome (RDS) in infants. This segment accounts for approximately 70% of the total market, reflecting the critical dependency on surfactant therapy for survival in preterm neonates. Adult ARDS, while smaller in market share (~30%), is growing due to increasing ICU admissions for acute lung injuries, trauma, and sepsis. The distinct clinical requirements and patient populations in each application segment influence product development, regulatory approvals, and pricing strategies, shaping the overall Pulmonary Surfactant market size.