Introduction: Working in a noisy environment is a risk for employee hearing health. Standard threshold shift (STS) can be used as a screening method to detect early indications of hearing deterioration. Objective: To investigate health effects related to STS in motor compressor workers. Methods: A cross sectional study of 464 motor compressor workers was conducted including hearing health examination by audiometer, and noise level in the workplace was monitored. Workers who reported having hobbies relating to noise, e.g. gun shooting, or a personal history of disease relating to the ear were excluded. The relationship between health effects and workers with STS was studied. Results: There were more men 81.90% (aged range 31 - 40 years old) than women working for the company. The average continuous noise level in the workplace was 84.14 ± 5.21 dB(A). The study showed that working at the factory for more than 14 years (OR= 3.84, 95%CI 1.54 - 9.56) and being exposed to noise at least 8 hours a day (OR = 2.12, 95%CI = 1.02 - 4.40) effected to STS. Workers with STS showed significant communication difficulties (OR = 1.89, 95%CI = 1.03 3.49) and stress/nausea more than workers with "What this paper adds" Standard threshold shift (STS) could be used as a technique to screen a person who has a hearing problem as it defines a change in the hearing threshold relative to a baseline audiogram of an average of 10 dB or more at 2 kHz, 3 kHz, or 4 kHz in either ear. People exposed to high noise levels for extended durations of time may be affected to health and STS although symptoms are non-specified. From previous study, there is no paper related to STS and working in a noisy environment. So, this paper is worthwhile for publication. [ABSTRACT FROM AUTHOR]