The article is dedicated to the fire-rescue operations conducted by firefighters in various conditions, primarily inside buildings and structures, where situations mainly involve the use of individual respiratory protection devices. It examines how the level of professional skills and practical abilities manifests during the execution of fire-rescue unit norms, performed while using individual respiratory protection equipment. The study focuses on determining correction values for fire-rescue unit norms executed with individual respiratory protection devices and analyzes the results of the conducted research.