Segmentation by type differentiates three core device architectures: Prefillable Metered‑Dose Inhalers (pMDIs), Prefillable Dry‑Powder Inhalers (pDPIs), and Prefillable Soft‑Mist Inhalers (pSMIs). pMDIs dominate the market due to their long‑standing presence, compatibility with a wide range of propellants, and established manufacturing supply chains, contributing approximately 45 % of total sales. pDPIs, leveraging breath‑actuated powder delivery, have captured around 40 % of the market, propelled by patient preference for propellant‑free operation and the expanding portfolio of high‑potency dry‑powder formulations. pSMIs, the newest entrant, represent roughly 15 % of revenue; they offer fine‑particle aerosol generation at lower velocities, improving deposition in peripheral airways and attracting niche therapeutic applications. Each type’s share reflects its alignment with formulation chemistry, device ergonomics, and clinical efficacy, thereby shaping the overall market composition.