Segmentation by type distinguishes the underlying separation technologies that determine capital intensity, operating cost, and purity limits. Pressure Swing Adsorption (PSA), often pressure‑based, remains the most prevalent technology, covering roughly 45 % of the market because of its robustness and scalability for 99.999 % purity targets. Membrane systems, accounting for about 30 %, offer continuous operation with lower energy consumption, favored in refineries and large‑scale utility applications where moderate purity (99.99 %) suffices. Cryogenic purification, representing near 15 % of sales, delivers the highest purity (>99.9999 %) required for semiconductor and research environments, albeit with higher capital and energy demands. Metal‑Hydride absorbers, at roughly 7 %, serve niche markets such as portable fuel‑cell units due to compactness and rapid response. Emerging Hybrid configurations, combining PSA and membrane stages, capture the remaining 3 % and are projected to grow as manufacturers seek optimized trade‑offs between efficiency and cost. This type‑based market taxonomy clarifies investment priorities across the hydrogen supply chain.