Filter media for challenging requirements

Filtration of flue gases that arise from combustion processes requires especially robust filter media with high filtration performance. The filter media are continuously exposed to high stresses, need to be always available, and must ensure high operational reliability. Kayser filter media fulfill these requirements reliably under these conditions:

  • High temperatures
  • High corrosive gas content
  • Fine dusts, difficult to precipitate and hygroscopic

Kayser Filtertech provides extensive consultation on filter media selection and plant optimization, fabricated filter media, support cages, and professional installation and inspections for exhaust gas purification in the fields of:

  • Biomass combustion
  • Energy production from waste
  • Coal power plants

As of January 2019, in addition to our familiar Kayser portfolio, we now offer the proven quality of Heimbach filtration products.

Recommended polymers

  • Glass with e-PTFE membrane
  • Polypropylene sulfide (PPS)
  • Polyimide (PI)
  • Aramides
  • Polytetrafluorethylene (PTFE)
  • Polyacrylonitrile (PAN)
  • Mixed felts


  • carat.2
    Specialized mixed felt
  • cascade.2
    Felts with multilayer construction
  • solit.AIR
    Microfiber felts

Surface treatment

  • Singed
  • Smoothed
  • Calendered
  • Oil and water-repellent
  • Protected against acid/hydrolysis
  • serie.90 PTFE Coating
  • KAY-TEX Filter media with laminated e-PTFE membranes

Support cages

We build our own support cages for the perfect hold. At our location in the Czech Republic, we produce the right support cages from various types of steel and stainless steel, with plant-specific surface finishing.

Installation and service

Our experienced service team will be happy to take care of everything else from here! The scope of services of our TASK team includes:

  • Removal and re-installation of filter media
  • Inspection of filter systems
  • HEC cleaning (High Efficiency Cleaning of installed filter elements)
  • Review work
  • Leakage tests with KAY-Glow® UV tracer powder
  • Measurements (differential pressure, air-permeability, qualitative dust measurement, volume flow)
  • Lab analyses of new and used filter media