Introduction: The high incidence of fires in the DKI Jakarta area certainly increases the risk for DKI Jakarta Firefighters, so Personal Protective Equipment is mandatory for officers when carrying out firefighting operations to prevent and control potential hazards for firefighters. It was recorded that 76 officers were injured and 1 officer died while carrying out firefighting operations in the last 5 (five) years. So it is necessary to know the factors that influence the behavior of using the SCBA (Self Contained Breathing Apparatus) respiratory Personal Protective Equipment. Methods: This quantitative descriptive study with a cross-sectional approach was carried out at the DKI Jakarta Provincial Fire and Rescue Service in 2021 with a population of all DKI Jakarta firefighters and a total sample of 208 firefighters. The instrument used is a questionnaire. Results: The results of data analysis carried out univariate and bivariate using the chi square test with = 0.05 showed a significant relationship between the behavior of using PPE SCBA with the availability of PPE (Pvalue = 0.000), Regulations (SOP) related to the use of PPE (Pvalue = 0.000) and Supervision (Pvalue = 0.000). However, there is no significant relationship between the behavior of using PPE SCBA with knowledge of PPE (Pvalue = 0.180), Age (Pvalue = 0.111), years of service (Pvalue = 0.065), training (Pvalue = 0.087) and PPE comfort (Pvalue = 0.513). Discussion: The behavior of using SCBA PPE for DKI Jakarta firefighters in 2021 is still relatively low because only 54.5% of respondents from firefighters stated that they used SCBA PPE in every fire fighting operation. So it is necessary to increase knowledge related to PPE and skills in using PPE for operational officers through education and training activities, training and technical guidance.