The course provides insight on the theoretical background, the various aspects of air pollution resulting from industrial activities and focuses on the detailed design of air pollution control systems. Emphasis is given on the increasingly strict legal framework related to the anti-pollution technology. The introduction to the course includes topics related to suspended particles (characteristics, behavior of particles in fluids (traction force, Stokes Law), external forces, gravitational precipitation, aerosols). Students are then taught detailed design issues including gravitation chambers for flue gas dedusting, centrifugal collectors (cyclones, polycyclones), electrostatic precipitators, bag filters and wet scrubbers (Spray chamber and cyclonic spray scrubbers, Venturi, etc). The advantages and disadvantages of each specific air pollution control system and its relative energy consumption are discussed in detail.