The workers who operate these machines are significantly exposed to high noise levels compared to other workers that they not operate it, the majority of workers are machine operators and because the size of many factories are not large noise exposure was not limited to machine operators, sound pressure levels are approximately equal in all locations except in the joiner (J3) and printing house factories sound pressure levels are not equal in all locations because the size of both industries are larger than other factories, old machines are responsible for most of the noises.