Introduction: This paper tries to determine efficiency of noise control method using fuzzy logic and based on collected data. Methods and Materials: from among various methods of noise control in workplace, sex methods (enclosure, installing noise absorber, enclosure and absorber, active, and administrative control, and personal protective equipment) were typically selected based on experts' judgment. For each of selected control methods, a possible rate of noise reduction was estimated based on experts' opinion and literature review. Moreover, cost of accomplishment was also estimated for each of control methods, and with regard of existing variables the efficiency of any method was determined.
Results: The results showed that we are able to calculate the efficiency of any method with knowing cost and noise reduction rate of the method. For example, with noise reduction 20.3132 dB and the cost equal to 2443.6107 mRials, the efficiency 50% is expected.
Conclusion: In this paper was used from modeling based on fuzzy logic for determining the efficiency of noise control method, and there was also specified which how can be recognized to be suitable and efficient a noise control method using slight data such as cost and noise reduction rate.