Global PEM Electrolyzer Gas Diffusion Layer market size was valued at USD 410 million in 2025. The market is projected to grow from USD 540 million in 2026 to USD 2,000 million by 2034, exhibiting a CAGR of 18.5% during the forecast period. Reflecting the accelerated pace of innovation and rising demand, the compound annual growth rate has been revised upward to 18.5%. A Gas Diffusion Layer...