Segmentation by types dissects the market into device families and their functional sub‑categories, elucidating how product architecture shapes revenue streams. Positive airway pressure (PAP) devices split into CPAP, BiPAP, and APAP units, with portable models gaining market share due to patient mobility trends. Mechanical ventilators differentiate between invasive (intubated) and non‑invasive systems, the former dominating intensive‑care settings while the latter expands into home‑care niches. Nebulizers are categorized as jet, ultrasonic, and mesh, each offering distinct aerosol generation efficiencies that affect prescription patterns. Inhalation devices encompass metered‑dose inhalers (MDIs), dry‑powder inhalers (DPIs), and soft‑mist inhalers, with formulation compatibility influencing clinician preference. Oxygen delivery devices separate into stationary concentrators, portable concentrators, and liquid oxygen systems, reflecting divergent usage contexts from chronic home therapy to emergency response. By quantifying sales per type, analysts can map product‑level contributions to the broader market, informing investment in innovation and capacity planning.