Zehnder Filter set Coarse 60% (G4) + ePM1 50% (F7) for ComfoSpot 50, 10 Pieces

This set consists of ten filters, five filter Coarse 60% (G4) and five filter ePM1 50% (F7).

Coarse 60% and ePM1 50% are the names according to the new filter standard ISO 16890. Coarse refers to particles measuring 10 microns. ePM1 refers to particles measuring 0,3-1 microns.

Coarse 60% means that at least 60% of particles in the size interval 10 micron are removed.

ePM1 50% means that at least 50% of particles in size range 0.3 - 1 micron are removed. G4 and F7 are the classifications earlier used.

Coarse (G4) is used for the air extracted from your rooms.

ePM1 (F7) is used for filtering the outside air supplied to your rooms.