Filter technology is a specialized field in engineering and materials science that focuses on the design, development, and implementation of filtering systems. These systems are used to separate particles or substances from a fluid or gas stream by passing it through a porous barrier or medium. Filter technology is utilized in a wide range of industries and applications, including water and wastewater treatment, air purification, industrial processes, automotive systems, and medical devices. Different types of filters are employed based on the specific requirements of the application, such as membrane filters, cartridge filters, bag filters, and electrostatic filters. Research in filter technology focuses on improving the efficiency, durability, and performance of filtering systems, as well as developing new materials and technologies to address emerging challenges and applications. This research area plays a critical role in ensuring the quality and safety of various processes and products in our daily lives.