Textile fabrics are used as filter media. Depending upon the
filtration application, different requirements have to be fulfilled. A number of
standards exist for the development of filters and filter media for different
applications. Sometimes it is necessary to combine different filtration media
to best fit the application’s requirements (e.g. textile filter and membrane). As
well as describing the standards, the structural design of the filters and their
manufacturing technologies are discussed. Some technological priorities that
have arisen due to the introduction of stringent environmental regulations are
discussed and future trends are documented.