ABSTRAK Alat Pelindung Diri (APD) berfungsi untuk melindungi tubuh terhadap bahaya-bahaya kecelakaan kerja dan mengurangi tingkat keparahan dari kecelakaan kerja yang terjadi. Penelitian ini bertujuan untuk mengetahui korelasi antara pengetahuan dan perilaku petugas Instalasi Pemeliharaan Sarana dan Prasarana Rumah Sakit (IPSRS) dengan kepatuhan terhadap penggunaan Alat Pelindung Diri (APD ADHERENCE USING PERSONAL PROTECTIVE EQUIPMENT (PPE) IN TERMS OF THE KNOWLEDGE AND BEHAVIOR OF OFFICER INSTALLATION MAINTENANCE FACILITIES AND INFRASTRUCTURE HOSPITAL (IPSRS) ABSTRACT Personal Protective Equipment (PPE) serves to protect the body against occupational injuries and reduce the severity of work accidents that occur. This study aims to determine the correlation between the knowledge and behavior of the officer of the Installation of Hospital Facilities and Infrastructure Maintenance (IPSRS) with the adherence to the use of Personal Protective Equipment (PPE). The design of this study was Cross Sectional. The population is all IPSRS officers in RSUD Siti