Application‑based segmentation partitions the market into neonatal care, pediatric respiratory support, adult critical‑care therapy, and home‑care oxygen delivery. Neonatal care, where precise flow control mitigates apnea and supports premature lung development, contributes about 30 % of market volume, reflecting the high incidence of preterm births in developed regions. Pediatric applications, addressing bronchiolitis and asthma exacerbations, account for roughly 20 % of sales, driven by seasonal admission spikes. Adult critical‑care usage—encompassing post‑operative recovery, COVID‑19 management, and acute hypoxemic respiratory failure—remains the largest segment at 40 %, due to intensive‑care unit adoption and reimbursement incentives. Home‑care oxygen delivery, increasingly supported by tele‑monitoring platforms, represents a modest 10 % share but shows the fastest CAGR, as chronic respiratory disease prevalence rises. These application categories collectively define the market taxonomy and inform strategic investment across device design, distribution, and regulatory pathways.