The centrifugal fan draws the air from the dust creating environment through the piping to the filtration cabinet where the filters are installed.
On entering the cabinet, the velocity of the dust laden air is abruptly decreased so that the larger dust particles drop into the hopper.
The air containing the finer particles is drawn through the fiber filters.
As the air passes through the filters, the particles are trapped on the

surface of the filters.
Free of particulate material, the air is released into the atmosphere.
To remove the particles trapped by the filter, a pulse of compressed air is injected into the venturi of the filter cage in the opposite direction of the air being filtered. The opposing air flows create a sonic wave that momentarily expands the filter and the accumulated dust particles fall into the hopper.
The accumulated dust particles in the hopper are removed by a rotary discharge valve.