By default, the case of SFB filter is made of galvanized steel sheet.
Replaceable filter inserts are made of filter materials of cleaning classes G4 (EU4), and at special order from material of cleaning class F5 (EU5).
The characteristics of the applied filter materials are given below.
Field of application
Filters are used for air purification at direct installation in the rectangular channel of systems of air conditioning and ventilation of industrial and public buildings at an ambient temperature from -40° to +70°C.