Pre-filters for chemical laboratory fume cupboards ChemFAST Elite

The high-performance G4 pre-filters remove particles from the air stream. The filter material is based on electrets. They remove particles from polluted air through strong electrostatic forces. The combination of strong electric charge and open structure results in a filter with high efficiency, low airflow resistance, and high loading capacity. The efficiency of the pre-filter corresponds to 75-85 % of the dust weight stoppage (ASHRAE).