Filter for Zehnder MVHR 90 / ComfoAir G90-300/G91-350, ISO Coarse >60% (G4), 2 Pieces

This set consists of 2x filters Coarse 60% (G4).

Coarse 60% is the name according to the new filter standard ISO 16890. Course refers to particles 10 micron.

Coarse 60% means that at least 60% of particles in the size interval 10 micron are removed. G4 is the classification earlier used.

Both filters can be used for supply and extraction air.