<![CDATA[Background: The furniture industry is known to pose a high risk for respiratory health problems due to exposure to wood dust and behavioral factors such as smoking. Lung vital capacity may decline with increased exposure to respiratory irritants, and smoking can further impair pulmonary function. This condition is important to examine among furniture workers, who are frequently exposed to long-term occupational hazards. Purpose: To analyze the factors of length of work and smoking habits on the vital lung capacity of furniture industry workers. Method: A descriptive analytic design with a cross-sectional approach. A total of 62 furniture workers were included using total sampling. Lung vital capacity was measured using spirometry. Data on length of employment and smoking habits were collected through structured questionnaires. The chi-square test was used to analyze the relationships between variables. Results: Of the 62 workers, 52 workers (83.9%) had impaired lung vital capacity, while 10 workers (16.1%) had normal lung vital capacity. The analysis showed no significant relationship between length of employment and lung vital capacity (p > 0.05). However, a significant association was found between smoking habits and lung vital capacity (p < 0.05). Conclusion: Most furniture industry workers in Touliang Oki Village experienced impaired lung vital capacity. Length of employment was not associated with lung vital capacity, whereas smoking habits were significantly related to decreased lung vital capacity. Efforts such as controlling risk factors, promoting smoking cessation, and conducting regular pulmonary health monitoring are recommended to protect workers’ health. Keywords: Furniture Industry Workers; Length of Employment; Lung Vital Capacity; Respiratory Function; Smoking Habits. Pendahuluan: Industri mebel merupakan salah satu sektor kerja yang memiliki risiko tinggi terhadap gangguan kesehatan pernapasan akibat paparan debu kayu serta faktor perilaku seperti merokok. Kapasitas vital paru dapat menurun seiring meningkatnya paparan iritan pernapasan dan kebiasaan merokok yang memperburuk fungsi paru. Kondisi ini penting untuk dikaji pada pekerja industri mebel yang memiliki paparan kerja jangka panjang. Tujuan: Untuk menganalisis faktor lama kerja dan kebiasaan merokok terhadap kapasitas vital paru pekerja industri mebel. Metode: Penelitian deskriptif analitik dengan pendekatan cross-sectional. Sampel berjumlah 62 pekerja industri mebel yang dipilih secara total sampling. Pengukuran kapasitas vital paru dilakukan menggunakan spirometri. Variabel lama kerja dan kebiasaan merokok dikumpulkan melalui wawancara dengan kuesioner terstruktur. Analisis hubungan dilakukan menggunakan uji statistik chi-square. Hasil: Dari 62 pekerja, sebanyak 52 pekerja (83.9%) mengalami gangguan kapasitas vital paru dan 10 pekerja (16.1%) memiliki kapasitas vital paru normal. Hasil analisis menunjukkan tidak terdapat hubungan antara lama kerja dengan kapasitas vital paru (p > 0.05). Namun, terdapat hubungan signifikan antara kebiasaan merokok dengan kapasitas vital paru (p < 0.05). Simpulan: Kapasitas vital paru pekerja industri mebel sebagian besar berada dalam kategori terganggu. Lama kerja tidak berhubungan dengan kapasitas vital paru, sedangkan kebiasaan merokok terbukti berhubungan dengan penurunan kapasitas vital paru. Upaya pengendalian faktor risiko, edukasi berhenti merokok, dan pemantauan kesehatan paru secara berkala perlu dilakukan untuk melindungi kesehatan pekerja. Kata Kunci: Kapasitas Vital Paru-paru; Kebiasaan Merokok; Lama Kerja; Pekerja Industri Mebel.]]>
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