Bag filters are essential in industrial air pollution control, offering effective dust collection across diverse industries. The ProJet Mega® bag filter by Intensiv Filter Himenviro represents a significant advancement in filtration technology, supporting flow rates ranging from 20,000 m³/h to over 2,000,000 m³/h. This paper delves into the pretreatment, post-treatment, and operational dynamics of the ProJet Mega®, focusing on its modular design, advanced cleaning systems like the Coanda Injector, and the utilization of ProTex filter media. Pretreatment ensures optimal air quality before filtration by addressing parameters such as humidity, temperature, and particle load. Post-treatment concentrates on the treatment of clean gases and disposal of collected dust, ensuring compliance with emission standards. Using Computational Fluid Dynamics (CFD), the system optimizes flow, reducing differential pressure and energy costs. The paper also discusses performance enhancements, such as extended filter bag life, reduced operational costs, and improved carbon footprint, offering insights into its suitability for applications like cement kilns and rotary mills.