In the introduction of this final paper, the chronological development of CNC machines is outlined, highlighting key discoveries that have shaped their evolution. In the classification and characteristics of CNC machines, particular attention is given to conventional machines. Furthermore, through the analysis of basic construction, operation, and maintenance of CNC machines, we aim to gain a deeper understanding of the working environment of CNC operators. By collecting data and analyzing the work environment, potential hazards, harmful effects, and challenges encountered in the workplace are identified. Plans and strategies are discussed for eliminating or reducing these risks to improve safety and productivity. In the experimental part of the research, noise levels are measured for both open and closed types of machines. Based on the obtained results, a comparison of noise levels is conducted, and specific measures for noise reduction are proposed. This part of the research aims to provide relevant information and guidelines for improving the working environment of CNC operators, with a focus on preserving their health and well- being.