Working Principle
A silent axial fan pumps in the ambient air and let it through 2 filter types :
1. Pre-filter: It retains all the larger impurities suspended in the air.
2. Electrostatic filters: They are composed of an ionising zone in which the suspended particles receive a positive electrical charge. A pollution collection system with aluminium strips provides a negative electrical field which attracts these particles.The result is air cleaning with an output of up to 95% (CETIAT control). The filtered air lets it being directly recycled into the utilisation area without any calorific loss or reduction in air quality.

BRC, France.