Air filters contemplated by the standards are subdivided in three fundamental categories: coarse, fine and absolute. Absolute filters are, in their turn, subdivided in two different classes: HEPA (High Efficiency Particulate Air filters) ULPA (Ultra Low Penetration Air filters).

The industrial dedusting field is very varied and branches out in numerous specialized branches. For a preliminary examination of the problem it is necessary to dispose of two series of data: characteristics of the system which emits the pollutants; nature of pollutants and their characteristics.

In machine shops, where the production is centered on the use of machine tools, one of the most common problems is the restoration intervention aimed at limiting the presence of oil or emulsion fogs.
As a matter of fact, since machine tools work at very quick production rhythms, they widely use lubricating fluids such as oil or oil emulsions and water.

For high flow rate suction installations, it can be convenient to estimate a winter energy recovery of the heat, through heat exchangers.

A “white room” is a room where aeration, ventilation, air filtration, building materials and operating procedures are  prescribed in order to control the concentration and quality of the particles which are present in the air and to meet adequate cleaning standards.

The use of GGE switchboards with frequency converter (commonly called Inverter) and GGE pressure regulator model DPF-REG is the technically more advanced, easy and efficient solution for the control of suction as a function of the opening and closing of inlet holes on production cycles.