Your benefits at a glance
- Synthetic needle felt with and without ePTFE membrane
- Glass fiber fabric with ePTFE membrane
- Working width up to 2.60 m
- Basis weight from 250 to 950 g/m²
- Design as roll goods or slitted roll material
- Core Product Catalog for filter media with shortest delivery time
- Special designs and development on customer request

Filter Media for Industrial Filters
made of needle felt and fiberglass fabric
Filter materials - efficient in use against pollutants
Filter media offers high filtration efficiency and effectively filters particles of different sizes from the production process. By selecting the right filter media, you can achieve the desired filtration performance for your specific application. Filter media are robust and resistant to chemical influences and mechanical stress. They offer a long service life and can be used in demanding industrial environments without compromising their filtration performance.
Filter media as roll goods is available in various lengths, widths and designs, which offers a high level of flexibility in adapting to different bagmaking options. They can be easily cut and processed in various facilities for further processing. At BWF Envirotec you can get filter materials in a wide variety of packaging units.
Feel free to ask us! We will also find the optimal packaging unit and design for you.
Filter media and their three-dimensional structure
- Fiber coating - on the raw gas side (with asymmetrical filler media there is no fiber coating on the raw gas side)
- Supporting scrim - ensures high tear resistance and reliable dimensional stability
- Fiber coating - on the clean gas side
- as well as, depending on the application, an e-PTFE membrane and/or chemical treatment

Filter media three-dimensional structure
- The filter medium maintains its excellent dimensional stability through this multi-stage structure, which results in unique strength.
- The longer the filter bags become, the more dead weight and weight of the filter cake they have to carry and withstand. If a filter bag were to lengthen under the weight it has to carry, its service life would be significantly shortened.
- Dimensional stability through multi-dimensional structure of the filter media is therefore immensely important.
- Filter bags of up to 12 m and longer are often used in the filtration process. Longer filter bags create a smaller “geometric footprint”, i.e. savings in material and manufacturing costs are taken into account when designing the filter system.
Filtration fibres and their interaction with different types of dust
