The effectiveness of fugitive exhaust gas collection depends not only on whether covers are placed over pollution-generating points, but also on the integrity of seals at joints, the design of operational openings, the exhaust flow rate, and the operational status of the negative-pressure system. During the design phase, it is necessary to measure the dimensions of tanks and workstations, account for requirements related to personnel operation, observation, and maintenance, and strategically position ventilation connection points. Once installed, the covers must be properly integrated with the ductwork and downstream treatment equipment. Depending on the composition of the exhaust gas and the chosen treatment strategy, the gas can be routed to systems such as scrubbing towers, activated carbon adsorption units, biological deodorization units, or other treatment facilities. As gas collection covers serve only to capture and transport emissions, the overall treatment efficiency and compliance with discharge standards must be evaluated based on the complete process design and the results of project-specific testing.