BackgroundFace masks were considered as an effective method of preventing respiratory infections like coronavirus infection. Identifying knowledge, attitude, and practice of healthcare workers regarding face mask utilization is very important to identify gaps and intervene immediately to control the spread of the infection. Hence, the main aim of this study was to determine the health worker’s knowledge, attitude, and practice of proper face mask utilization and associated factors at police health faculties in Addis Ababa, Ethiopia, 2020.MethodsAcross-sectional, quantitative approach study was conducted from June to July 2020. The study covered 408 health professionals of all categories working in the different police health facilities found in Addis Ababa, Ethiopia, during the study period. Data were collected using a pre-tested self-administered questionnaire adopted from different studies after getting consent from the study participants. After the data were collected, it was entered and analyzed using SPSS version 23 computer software. A logistic regression model was used to measure the association between the predictor and outcome variables. Statistical significance was declared at p-value<0.05. Direction and strength of association were expressed using OR and 95% CI.ResultsThe study showed that the overall knowledge, attitude, and practice of the healthcare provider towards proper face mask utilization were 98 (33.5%), 185 (45.3%), and 272 (33.3%) respectively. Factors associated with proper utilization of face mask were educational status (AOR = 10.4, 95% CI: 2.51, 43.32), police rank (AOR=0.2. CI: 0.05, 0.41), profession (AOR = 7.7, 95% CI: 2.63, 22.65), and knowledge about face mask use (AOR = 0.01, 95% CI: 0.003, 0.023).ConclusionIn this study, the level of knowledge and attitude towards face mask utilization was relatively low, and the level of proper face mask utilization was quite low in comparison with some studies. Comprehensive training about a face mask that focuses on its proper use should be designed and given by the authorities to healthcare workers who are on the front-line in the fight against COVID-19.