Individual fit test of hearing protectors for noise workers in typical automobile manufacturing industry
10.3969/j.issn.1006-2483.2026.02.017
- VernacularTitle:典型汽车制造业噪声作业工人护听器个体适合性检验
- Author:
Xuan LIU
1
;
Xue ZHAO
2
;
Jing LIU
2
;
Xiaoxiao GUO
2
;
Qiang ZENG
1
Author Information
1. Institute of Occupational Health, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China; School of Public Health, Tianjin Medical University, Tianjin 300070, China
2. Institute of Occupational Health, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
- Publication Type:Journal Article
- Keywords:
Noise operation;
Hearing protectors;
Personal attenuation rating;
Individual fit test;
Occupational health monitoring
- From:
Journal of Public Health and Preventive Medicine
2026;37(2):79-83
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the wearing status and actual noise reduction effect of hearing protectors among noise workers in a typical automobile manufacturing enterprise. Methods In April 2024, an occupational hazard factor testing was carried out in an automobile manufacturing industry, and at the same time, the hearing protection fit test was conducted for noise workers. Intervention and guidance were provided to those who did not pass the minimum standard of baseline PAR. The difference in PAR between baseline and post-intervention was compared, and the effectiveness of hearing protector wearing method training was evaluated. Results The exceeding rate of the company's noise operation post was 50.77% (66/130). The baseline PAR of the subjects with working experience of less than 15 years and wearing hearing protectors throughout noisy work was higher, and the differences were statistically significant (P<0.05). Compared with those with 80dB≤LEX, 8h<85dB, more research subjects with LEX, 8h≥85dB failed baseline PAR (39.13%). After intervention, the PAR of the subjects who did not pass the minimum standard of baseline PRA increased from 2.0 (0.0, 5.3) to 17.0 (14.8, 20.0), and the protection level was significantly improved, and the difference was statistically significant (P<0.01). Conclusion The individual fit test of hearing protector is an important means to evaluate the actual noise reduction level of hearing protector and guide the selection of hearing protection models. Corporate training can help improve the PAR of hearing protectors.
