What should not be done in or near rooms containing flammable vapors?

Hot work refers to any operation that produces sparks, flames, or heat that could ignite flammable vapors, such as welding, cutting, or grinding. In environments where flammable vapors are present, the risk of ignition from these processes is significantly heightened. Therefore, hot work should be strictly avoided in or near such rooms to prevent potential fires or explosions.

In contrast, cold work, which does not generate significant heat or sparks, is generally safer in environments with flammable vapors. Electrical work, although it can be risky, can be performed with appropriate precautions, such as ensuring that equipment is explosion-proof or de-energized. Routine inspections are essential for safety and compliance and are typically carried out with care to avoid igniting flammable materials. Hence, avoiding hot work is crucial for maintaining safety in those environments.