The current COVID-19 pandemic has caused a substantial change in the workflow of health professionals. One of the most important characteristics has been the use of PPE. Masks are a critical preventive measure and are most essential when social distancing is difficult. It is clear that adherence to universal mask policies reduces the transmission of SARS-CoV-2.14 But, according to the data obtained, we demonstrate a statistically significant association between the use of filter masks and the appearance of headache.