Welding is an important and constantly evolving technology enjoying a growth rate in the metal-working industries that is higher than the general industrial growth. Welding, as with most industrial processes, does have its inherent problems, one of which is the fumes and gases generated during the welding process. This paper presents a complete technical analysis of the problems associated with most of the more common types of industrial welding. In addition, alternative engineered solutions are investigated in detail, including a descriptive analysis of several types of air-cleaning devices. Finally, the control of the welding fume problem is analyzed based on actual test installations demonstrating the ability to achieve acceptable particulate and gas concentration levels in the worker’s environment, while achieving significant heat recovery (or conditioned air) by a unique approach to air recirculation.