Zehnder Filter set 2x ePM1 50% (F7) 471 502 020 Airflow 57FTQR Double Inlet Centrifugal

Airflow 57FTQR Double Inlet Centrifugal Fan

up to 88% of the extract air heat is emitted into the incoming fresh air

Exceptional quietness

all battery packs can be interchanged between all 3 site light models

Loosening rusty bolts

Zehnder Filter set 2x ePM1 50% (F7) 471 502 020 Airflow 57FTQR Double Inlet CentrifugalThis set consists of 2x filters ePM1 50% (F7). ePM1 50% is the name according to the new filter standard ISO 16890. ePM1 refers to particles 0,3 1 micron. ePM1 50% means that at least 50% of particles in size range 0. 3 1 micron are removed. F7 is the classification earlier used. Both filters can be used for supply and extraction air.