Polyphenylsulfone is widely used in the medical field due to its excellent biocompatibility and sterilization resistance. It is commonly employed in the production of surgical instruments, dental equipment, and sterilization trays, as it can withstand repeated exposure to high temperatures and harsh chemicals. In the aerospace industry, it is utilized for manufacturing components that require high strength, thermal stability, and flame resistance, such as interior panels and electrical connectors. Additionally, its use in the automotive sector includes applications in under-the-hood components and fuel system parts, where durability and resistance to heat and chemicals are critical. Its transparency and mechanical properties also make it suitable for lenses, filters, and other optical devices.