Several industries face problems from dust released during product transportation or processing. This is the case of the Textile, Wood Processing, Mining, Ink Manufacturing and other industries. Frequently, in order to maintain an appropriate level of particles suspended in the air (usually measured in Parts per Million by Volume), dust is extracted with air in strategically positioned caption points and typically recovered in cyclones or in bag filters. When filters have to be used to increase capture efficiency, operating problems may arise, usually due to condensation and particle aggressiveness.