B ackgroundconstruction workers are at high risk of developing pulmonary function impairment due to exposure to respirable and toxic cement dust. objective to determine the relationship between the duration of cement dust exposure and pulmonary function impairment in construction workers.methodsthis study is an analytical observasional study with a cross-sectional design conducted on 100 construction workers at pt wijaya karya, east jakarta. data were collected using questionnaires and spirometry examination. bivariate analysis was performed using the chi-square test.resultsa total of 81% of respondents were found to have impaired pulmonary function. the majority of respondents were in the 18-59 year ago group (96%), worked ≥8 hours per day (65%), and had a work duration of less than 10 years (70%). additionally, 80% were active smokers, and only 36% consistently used personal protective equipment (ppe). pulmonary function impairment was most prevalent among workers with ≥10 years of service (93,3%) and among smokers who consumed ≥12 cigarettes per day (85%). bivariate analysis showed no statistically working hours (p=0,936) and years of service (p=0,075) with pulmonary function impairment among construction workers.conclusionthere was no significant association between daily working hours and years of service with pulmonary function impairment among construction workers.