This paper informs about the potential dangers associated with the gases used in thermal spraying. These include fuel gases, oxygen, inert gases, and carbon dioxide. The paper addresses the following: flammability, explosion, oxygen enrichment and tolerance, asphyxiation, and low-temperature technology. It presents regulations and leaflets relating to the safe storage, handling, and use of gases with various supply options. Safe working techniques are recommended along with a brief description of the relevant safety equipment. Paper includes a German-language abstract.