Zehnder Filter set 10 x Coarse 60% (G4) + ePM1 50% (F7) for ComfoAir 70 AX3703 G4 and F7 are the

G4 and F7 are the classifications earlier used

ePM1 50% means that at least 50% of particles in size range 0

Battery level and charging indicators keep you informed

One end 5/16" Straight

Dwelling Supply Air Comfort Control (reduces the amount of cold air being supplied to dwelling)

Zehnder Filter set 10 x Coarse 60% (G4) + ePM1 50% (F7) for ComfoAir 70 AX3703 G4 and F7 are theThis 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